追加課題（登録処理まで完了）

.classpath

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
-	<classpathentry kind="src" path="src/main/java"/>
-	<classpathentry kind="output" path="build/classes"/>
-</classpath>

.gitignore

@@ -1 +1 @@
-/build/
+実行例（追加問題含め）/em_oop.jar

.settings/org.eclipse.wst.common.project.facet.core.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<faceted-project>
-  <installed facet="java" version="21"/>
-</faceted-project>

BasicCheck1.java

@@ -0,0 +1,27 @@
+package misson1014;
+
+public class BasicCheck1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+	       //コンストラクタ
+        Book book1 = new Book();
+
+        //book1
+        System.out.println(book1.title);
+        System.out.println(book1.author);
+        System.out.println(book1.price);
+
+        //コンストラクタ
+        Book book2 = new Book(
+                "銀河鉄道の夜",
+                "宮沢賢治",
+                500);
+
+        //book2
+        System.out.println(book2.title);
+        System.out.println(book2.author);
+        System.out.println(book2.price);
+
+    }
+}

BasicCheck2.java

@@ -1,19 +1,23 @@
+package misson1014;
 
 public class BasicCheck2 {
 
 	public static void main(String[] args) {
 		// TODO 自動生成されたメソッド・スタブ
-		
         Student student1 = new Student(1, "鈴木一郎");
         Student student2 = new Student(2, "田中花子");
         Student student3 = new Student(3, "佐藤次郎");
 
+        // 学生情報表示
         student1.printProfile();
         student2.printProfile();
         student3.printProfile();
 
-        System.out.println("現在の生徒数: " + student1.getStudentCount() + "人");
+        // 現在の学生数表示
-        
+        System.out.println(
+                "現在の生徒数:"
+                + Student.getStudentCount()
+                + "人");
     }
 
 }

BasicCheck3.java

@@ -1,36 +1,37 @@
+package misson1014;
 
 public class BasicCheck3 {
 
 	public static void main(String[] args) {
 		// TODO 自動生成されたメソッド・スタブ
+		// Item型の配列を作成
 		Item[] items = new Item[3];
 
+		//インスタンス生成
 		items[0] = new Item();
+		items[1] = new Item();
+		items[2] = new Item();
+
 		items[0].setName("ノート");
 		items[0].setPrice(120);
 		items[0].setStock(50);
 
-
-		items[1] = new Item();
 		items[1].setName("消しゴム");
 		items[1].setPrice(80);
 		items[1].setStock(30);
 
-
-		items[2] = new Item();
 		items[2].setName("鉛筆");
 		items[2].setPrice(60);
 		items[2].setStock(100);
 
+		//販売
 		for (int i = 0; i < items.length; i++) {
 			items[i].sell(5);
 		}
-		
+		//商品情報表示
 		for (int i = 0; i < items.length; i++) {
 			System.out.println(items[i]);
-            
 		}
 
 	}
-
 }

Book.java

@@ -0,0 +1,28 @@
+package misson1014;
+
+public class Book {
+    // タイトル
+    String title;
+    // 著者
+    String author;
+    // 価格
+    int price;
+    
+    //コンストラクタ
+    public Book() {
+
+        this.title = "タイトル未設定";
+        this.author = "著者未設定";
+        this.price = 0;
+    }
+
+    //コンストラクタ
+    public Book(String title, String author, int price) {
+
+        //フィールド代入
+        this.title = title;
+        this.author = author;
+        this.price = price;
+
+    }
+}

DepartmentData.csv

@@ -0,0 +1,6 @@
+10,役員
+11,人事・総務部
+12,経理部
+13,システム開発事業部
+14,教育事業部
+15,営業企画部

EmployeeData.csv

@@ -0,0 +1,11 @@
+10000,山田龍也,ヤマダタツヤ,yamada@hoge.jp,aaa,10
+10001,高橋準,タカハシジュン,jtaka@hoge.jp,bbb,10
+10002,麻枝史明,マエダフミアキ,fmak@hoge.jp,ccc,11
+10003,丸戸章介,マルトショウスケ,marusyo@hoge.jp,ddd,12
+10004,三宅武,ミヤケタケシ,miya@hoge.jp,eee,13
+10005,丸井悠,マルイハルカ,haru@hoge.jp,fff,13
+10006,涼元香織,スズモトカオリ,suzumoto@hoge.jp,ggg,13
+10007,葉山稔,ハヤマミノル,mhayama@hoge.jp,hhh,14
+10008,川上朱里,カワカミアカリ,kawakami@hoge.jp,iii,14
+10009,杉井肇,スギイハジメ,sugi@hoge.jp,jjj,15
+12345,石原,イシハラ,tesr,test,10

EmployeeData.java

@@ -0,0 +1,118 @@
+package misson1014;
+
+public class EmployeeData {
+    //社員ID
+    private String idEmployee;
+    //社員名
+    private String nmEmployee;
+    //社員名カナ
+    private String knEmployee;
+    //メールアドレス
+    private String mailAddress;
+    //パスワード
+    private String password;
+    //部署ID
+    private String idDepartment;
+    //社員データ件数
+    private static int empCount = 0;
+    //コンストラクタ
+    public EmployeeData() {
+        empCount++;
+    }
+    //コンストラクタ
+    public EmployeeData(
+            String idEmployee,
+            String nmEmployee,
+            String knEmployee,
+            String mailAddress,
+            String password,
+            String idDepartment) {
+    	
+        this.setIdEmployee(idEmployee);
+        this.setNmEmployee(nmEmployee);
+        this.setKnEmployee(knEmployee);
+        this.setMailAddress(mailAddress);
+        this.setPassword(password);
+        this.setIdDepartment(idDepartment);
+        empCount++;
+
+    }
+    //ゲッター
+    public String getIdEmployee() {
+        return idEmployee;
+    }
+    public String getNmEmployee() {
+        return nmEmployee;
+    }
+    public String getKnEmployee() {
+        return knEmployee;
+    }
+    public String getMailAddress() {
+        return mailAddress;
+    }
+    public String getPassword() {
+        return password;
+    }
+    public String getIdDepartment() {
+        return idDepartment;
+    }
+    //セッター
+    public void setIdEmployee(String idEmployee) {
+        //nullチェック
+        if (idEmployee == null) {
+            System.out.println("社員IDが空のため設定できませんでした");
+            return;
+        }
+        //空文字チェック
+        if (idEmployee.trim().isEmpty()) {
+            System.out.println( "社員IDが空のため設定できませんでした");
+            return;
+        }
+        this.idEmployee = idEmployee;
+    }
+    public void setNmEmployee(String nmEmployee) {
+        //nullチェック
+        if (nmEmployee == null) {
+            System.out.println("社員名が空のため設定できませんでした");
+            return;
+        }
+        //空文字チェック
+        if (nmEmployee.trim().isEmpty()) {
+            System.out.println("社員名が空のため設定できませんでした");
+            return;
+        }
+        this.nmEmployee = nmEmployee;
+    }
+    public void setKnEmployee(String knEmployee) {
+        this.knEmployee = knEmployee;
+    }
+    public void setMailAddress(String mailAddress) {
+        this.mailAddress = mailAddress;
+    }
+    public void setPassword(String password) {
+        this.password = password;
+    }
+    public void setIdDepartment(String idDepartment) {
+        this.idDepartment = idDepartment;
+    }
+    //toString
+    @Override
+    public String toString() {
+
+        return getIdEmployee() + "\t"
+                + getNmEmployee() + "\t"
+                + getKnEmployee() + "\t"
+                + getMailAddress() + "\t"
+                + getPassword() + "\t"
+                + getIdDepartment();
+    }
+
+    //ID一致判定
+    public boolean isMatchId(String id) {
+        return getIdEmployee().equals(id);
+    }
+    //件数取得
+    public static int getEmpCount() {
+        return empCount;
+    }
+}

Item.java

@@ -0,0 +1,52 @@
+package misson1014;
+
+public class Item {
+	private String name;
+	private int price;
+	private int stock;
+
+	//商品
+	public void sell(int amount) {
+		//在庫減らし
+		this.setStock(this.getStock() - amount);
+	}
+
+	//商品名ゲッター
+	public String getName() {
+		return name;
+	}
+	//商品名セッター
+	public void setName(String name) {
+		this.name = name;
+	}
+	//価格ゲッター
+	public int getPrice() {
+		return price;
+	}
+	//価格セッター
+	public void setPrice(int price) {
+		this.price = price;
+	}
+	//在庫数ゲッター
+	public int getStock() {
+		return stock;
+	}
+	//在庫数セッター
+	public void setStock(int stock) {
+		this.stock = stock;
+	}
+
+	@Override
+	public String toString() {
+
+		return getName()
+				+ " "
+				+ getPrice()
+				+ "円 (残り"
+				+ getStock()
+				+ "個)";
+
+	}
+
+
+}

Main.java

@@ -0,0 +1,80 @@
+package misson1014;
+import java.util.Scanner;
+
+public class Main {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        //配列を作成
+        EmployeeData[] employees = new EmployeeData[5];
+
+        //インスタンス生成
+        employees[0] = new EmployeeData();
+        employees[1] = new EmployeeData();
+        employees[2] = new EmployeeData();
+        employees[3] = new EmployeeData();
+        employees[4] = new EmployeeData();
+
+        employees[0].setIdEmployee("10000");
+        employees[0].setNmEmployee("山田龍也");
+        employees[0].setKnEmployee("ヤマダタツヤ");
+        employees[0].setMailAddress("yamada@hoge.jp");
+        employees[0].setPassword("aaa");
+        employees[0].setIdDepartment("10");
+
+        employees[1].setIdEmployee("10001");
+        employees[1].setNmEmployee("高橋準");
+        employees[1].setKnEmployee("タカハシジュン");
+        employees[1].setMailAddress("jtaka@hoge.jp");
+        employees[1].setPassword("bbb");
+        employees[1].setIdDepartment("10");
+
+        employees[2].setIdEmployee("10002");
+        employees[2].setNmEmployee("麻枝史明");
+        employees[2].setKnEmployee("マエダフミアキ");
+        employees[2].setMailAddress("fmak@hoge.jp");
+        employees[2].setPassword("ccc");
+        employees[2].setIdDepartment("11");
+
+        employees[3].setIdEmployee("10003");
+        employees[3].setNmEmployee("丸戸章介");
+        employees[3].setKnEmployee("マルトショウスケ");
+        employees[3].setMailAddress("marusyo@hoge.jp");
+        employees[3].setPassword("ddd");
+        employees[3].setIdDepartment("12");
+
+        employees[4].setIdEmployee("10004");
+        employees[4].setNmEmployee("三宅武");
+        employees[4].setKnEmployee("ミヤケタケシ");
+        employees[4].setMailAddress("miya@hoge.jp");
+        employees[4].setPassword("eee");
+        employees[4].setIdDepartment("13");
+
+        Scanner scanner = new Scanner(System.in);
+
+        //0が入力されるまでループ
+        while (true) {
+            //ID入力
+            System.out.println("検索したい社員IDを入力してください（終了する場合は0）");
+            String search = scanner.nextLine();
+            if (search.equals("0")) { System.out.println("システムを終了します");
+                break;
+            }
+            //見つかったかどうか
+            boolean found = false;
+            //検索処理
+            for (int i = 0; i < employees.length; i++) {
+                if (employees[i].isMatchId(search)) {
+                	System.out.println(employees[i]);
+                    found = true;
+                    break;
+                }
+            }
+            // 見つからなかった場合
+            if (!found) {System.out.println("該当する社員が見つかりませんでした");
+            }
+        }
+        scanner.close();
+    }
+
+}

Main1.java

@@ -0,0 +1,91 @@
+package misson1014;
+
+public class Main1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        //8段階目まで
+		
+        /*
+        EmployeeData[] employees = new EmployeeData[5];
+
+        employees[0] = new EmployeeData();
+        employees[1] = new EmployeeData();
+        employees[2] = new EmployeeData();
+        employees[3] = new EmployeeData();
+        employees[4] = new EmployeeData();
+
+        employees[0].setIdEmployee("10000");
+
+		8段階用
+        employees[0].setNmEmployee("");
+
+        employees[0].setKnEmployee("ヤマダタツヤ");
+        employees[0].setMailAddress("yamada@hoge.jp");
+        employees[0].setPassword("aaa");
+        employees[0].setIdDepartment("10");
+
+        employees[1].setIdEmployee("10001");
+        employees[1].setNmEmployee("高橋準");
+        employees[1].setKnEmployee("タカハシジュン");
+        employees[1].setMailAddress("jtaka@hoge.jp");
+        employees[1].setPassword("bbb");
+        employees[1].setIdDepartment("10");
+
+        employees[2].setIdEmployee("10002");
+        employees[2].setNmEmployee("麻枝史明");
+        employees[2].setKnEmployee("マエダフミアキ");
+        employees[2].setMailAddress("fmak@hoge.jp");
+        employees[2].setPassword("ccc");
+        employees[2].setIdDepartment("11");
+
+        employees[3].setIdEmployee("10003");
+        employees[3].setNmEmployee("丸戸章介");
+        employees[3].setKnEmployee("マルトショウスケ");
+        employees[3].setMailAddress("marusyo@hoge.jp");
+        employees[3].setPassword("ddd");
+        employees[3].setIdDepartment("12");
+
+        employees[4].setIdEmployee("10004");
+        employees[4].setNmEmployee("三宅武");
+        employees[4].setKnEmployee("ミヤケタケシ");
+        employees[4].setMailAddress("miya@hoge.jp");
+        employees[4].setPassword("eee");
+        employees[4].setIdDepartment("13");
+
+        for (int i = 0; i < employees.length; i++) {
+
+            System.out.println(employees[i]);
+
+        }
+
+        System.out.println(
+                "現在の社員データ件数:"
+                        + EmployeeData.getEmpCount()
+                        + "件");
+        */
+
+        //ここから9段階↓
+		EmployeeData employee1 =
+				new EmployeeData(
+						"10000",
+						"",
+						"ヤマダタツヤ",
+						"yamada@hoge.jp",
+						"aaa",
+						"10"
+						);
+
+		EmployeeData employee2 =
+				new EmployeeData(
+						"",
+						"山田龍也",
+						"ヤマダタツヤ",
+						"yamada@hoge.jp",
+						"aaa",
+						"10"
+						);
+
+	}
+
+}

Student.java

@@ -0,0 +1,31 @@
+package misson1014;
+
+public class Student {
+	int studentId;
+	String name;
+	//staticフィールド
+	static int studentCount = 0;
+
+	//コンストラクタ
+	public Student(int studentId, String name) {
+		//フィールド代入
+		this.studentId = studentId;
+		this.name = name;
+		studentCount++;
+	}
+
+	//学生情報
+	void printProfile() {
+
+		System.out.println(
+				"学籍番号:" + this.studentId
+				+ " 名前:" + this.name);
+	}
+
+	//現在の学生数用staticメソッド
+	public static int getStudentCount() {
+		return studentCount;
+
+	}
+
+}

em_oop_kawara/BaseData.java

@@ -1,9 +0,0 @@
-
-public abstract class BaseData{
-	public abstract String toString();
-	public abstract String toCSV();
-	public abstract String getPrimaryKeyValue();
-	
-	
-
-}

misson1014/.classpath

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

misson1014/.project

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>em-oop</name>
+	<name>misson1014</name>
 	<comment></comment>
 	<projects>
 	</projects>
@@ -10,14 +10,8 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.wst.common.project.facet.core.builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
 	</buildSpec>
 	<natures>
-		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 	</natures>
 </projectDescription>

misson1014/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8

misson1014/.settings/org.eclipse.jdt.core.prefs

@@ -1,9 +1,11 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
 org.eclipse.jdt.core.compiler.compliance=21
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.release=enabled
 org.eclipse.jdt.core.compiler.source=21

misson1014/src/misson1014/BaseData.java

@@ -0,0 +1,10 @@
+package misson1014;
+
+public abstract class BaseData {
+
+    public abstract String toString();
+
+    public abstract String toCSV();
+
+    public abstract String getPrimaryKeyValue();
+}

misson1014/src/misson1014/BasicCheck1.java

@@ -0,0 +1,27 @@
+package misson1014;
+
+public class BasicCheck1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+	       //コンストラクタ
+        Book book1 = new Book();
+
+        //book1
+        System.out.println(book1.title);
+        System.out.println(book1.author);
+        System.out.println(book1.price);
+
+        //コンストラクタ
+        Book book2 = new Book(
+                "銀河鉄道の夜",
+                "宮沢賢治",
+                500);
+
+        //book2
+        System.out.println(book2.title);
+        System.out.println(book2.author);
+        System.out.println(book2.price);
+
+    }
+}

misson1014/src/misson1014/BasicCheck2.java

@@ -0,0 +1,23 @@
+package misson1014;
+
+public class BasicCheck2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        Student student1 = new Student(1, "鈴木一郎");
+        Student student2 = new Student(2, "田中花子");
+        Student student3 = new Student(3, "佐藤次郎");
+
+        // 学生情報表示
+        student1.printProfile();
+        student2.printProfile();
+        student3.printProfile();
+
+        // 現在の学生数表示
+        System.out.println(
+                "現在の生徒数:"
+                + Student.getStudentCount()
+                + "人");
+    }
+
+}

misson1014/src/misson1014/BasicCheck3.java

@@ -0,0 +1,37 @@
+package misson1014;
+
+public class BasicCheck3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		// Item型の配列を作成
+		Item[] items = new Item[3];
+
+		//インスタンス生成
+		items[0] = new Item();
+		items[1] = new Item();
+		items[2] = new Item();
+
+		items[0].setName("ノート");
+		items[0].setPrice(120);
+		items[0].setStock(50);
+
+		items[1].setName("消しゴム");
+		items[1].setPrice(80);
+		items[1].setStock(30);
+
+		items[2].setName("鉛筆");
+		items[2].setPrice(60);
+		items[2].setStock(100);
+
+		//販売
+		for (int i = 0; i < items.length; i++) {
+			items[i].sell(5);
+		}
+		//商品情報表示
+		for (int i = 0; i < items.length; i++) {
+			System.out.println(items[i]);
+		}
+
+	}
+}

misson1014/src/misson1014/Book.java

@@ -0,0 +1,28 @@
+package misson1014;
+
+public class Book {
+    // タイトル
+    String title;
+    // 著者
+    String author;
+    // 価格
+    int price;
+    
+    //コンストラクタ
+    public Book() {
+
+        this.title = "タイトル未設定";
+        this.author = "著者未設定";
+        this.price = 0;
+    }
+
+    //コンストラクタ
+    public Book(String title, String author, int price) {
+
+        //フィールド代入
+        this.title = title;
+        this.author = author;
+        this.price = price;
+
+    }
+}

misson1014/src/misson1014/Circle.java

@@ -0,0 +1,24 @@
+package misson1014;
+
+public class Circle extends Shape {
+
+	private double radius;
+
+	public Circle(double radius) {
+
+		super("円");
+
+		this.radius = radius;
+	}
+
+	@Override
+	public double area() {
+		return Math.PI * this.radius * this.radius;
+	}
+
+	@Override
+	public void showInfo() {
+		super.showInfo();
+		System.out.println("(半径:" + this.radius + ")");
+	}
+}

misson1014/src/misson1014/Day3Check1.java

@@ -0,0 +1,11 @@
+package misson1014;
+
+public class Day3Check1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        Circle circle = new Circle(2);
+
+        circle.showInfo();
+    }
+}

misson1014/src/misson1014/DepartmentData.java

@@ -0,0 +1,38 @@
+package misson1014;
+
+public class DepartmentData extends BaseData {
+
+	private String idDepartment;
+	private String nmDepartment;
+
+	public String getIdDepartment() {
+		return idDepartment;
+	}
+
+	public void setIdDepartment(String idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	public String getNmDepartment() {
+		return nmDepartment;
+	}
+
+	public void setNmDepartment(String nmDepartment) {
+		this.nmDepartment = nmDepartment;
+	}
+
+	@Override
+	public String toString() {
+		return getIdDepartment() + "\t" + getNmDepartment();
+	}
+
+	@Override
+	public String toCSV() {
+		return getIdDepartment() + "," + getNmDepartment();
+	}
+
+	@Override
+	public String getPrimaryKeyValue() {
+		return getIdDepartment();
+	}
+}

misson1014/src/misson1014/EmployeeData.java

@@ -0,0 +1,147 @@
+package misson1014;
+
+public class EmployeeData extends BaseData {
+	//社員ID
+	private String idEmployee;
+	//社員名
+	private String nmEmployee;
+	//社員名カナ
+	private String knEmployee;
+	//メールアドレス
+	private String mailAddress;
+	//パスワード
+	private String password;
+	//部署ID
+	private String idDepartment;
+	//社員データ件数
+	private static int empCount = 0;
+	//コンストラクタ
+	public EmployeeData() {
+		empCount++;
+	}
+	//コンストラクタ
+	public EmployeeData(
+			String idEmployee,
+			String nmEmployee,
+			String knEmployee,
+			String mailAddress,
+			String password,
+			String idDepartment) {
+
+		this.setIdEmployee(idEmployee);
+		this.setNmEmployee(nmEmployee);
+		this.setKnEmployee(knEmployee);
+		this.setMailAddress(mailAddress);
+		this.setPassword(password);
+		this.setIdDepartment(idDepartment);
+
+		empCount++;
+	}
+
+	//ゲッター
+	public String getIdEmployee() {
+		return idEmployee;
+	}
+	public String getNmEmployee() {
+		return nmEmployee;
+	}
+	public String getKnEmployee() {
+		return knEmployee;
+	}
+	public String getMailAddress() {
+		return mailAddress;
+	}
+	public String getPassword() {
+		return password;
+	}
+	public String getIdDepartment() {
+		return idDepartment;
+	}
+	//セッター
+	public void setIdEmployee(String idEmployee) {
+
+		if (idEmployee == null) {
+			System.out.println("社員IDが空のため設定できませんでした");
+			return;
+		}
+
+		if (idEmployee.trim().isEmpty()) {
+			System.out.println("社員IDが空のため設定できませんでした");
+			return;
+		}
+
+		this.idEmployee = idEmployee;
+	}
+
+	public void setNmEmployee(String nmEmployee) {
+
+		if (nmEmployee == null) {
+			System.out.println("社員名が空のため設定できませんでした");
+			return;
+		}
+
+		if (nmEmployee.trim().isEmpty()) {
+			System.out.println("社員名が空のため設定できませんでした");
+			return;
+		}
+
+		this.nmEmployee = nmEmployee;
+	}
+
+	public void setKnEmployee(String knEmployee) {
+		this.knEmployee = knEmployee;
+	}
+
+	public void setMailAddress(String mailAddress) {
+		this.mailAddress = mailAddress;
+	}
+
+	public void setPassword(String password) {
+		this.password = password;
+	}
+
+	public void setIdDepartment(String idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	//toString
+	@Override
+	public String toString() {
+
+		return getIdEmployee() + "\t"
+				+ getNmEmployee() + "\t"
+				+ getKnEmployee() + "\t"
+				+ getMailAddress() + "\t"
+				+ getPassword() + "\t"
+				+ getIdDepartment();
+	}
+
+	//CSV形式へ変換
+	@Override
+	public String toCSV() {
+
+		return getIdEmployee() + ","
+				+ getNmEmployee() + ","
+				+ getKnEmployee() + ","
+				+ getMailAddress() + ","
+				+ getPassword() + ","
+				+ getIdDepartment();
+	}
+
+	//キー取得
+	@Override
+	public String getPrimaryKeyValue() {
+
+		return getIdEmployee();
+	}
+
+	//ID一致判定
+	public boolean isMatchId(String id) {
+		return getIdEmployee().equals(id);
+	}
+
+	//件数取得
+	public static int getEmpCount() {
+		return empCount;
+	}
+}

misson1014/src/misson1014/Item.java

@@ -0,0 +1,52 @@
+package misson1014;
+
+public class Item {
+	private String name;
+	private int price;
+	private int stock;
+
+	//商品
+	public void sell(int amount) {
+		//在庫減らし
+		this.setStock(this.getStock() - amount);
+	}
+
+	//商品名ゲッター
+	public String getName() {
+		return name;
+	}
+	//商品名セッター
+	public void setName(String name) {
+		this.name = name;
+	}
+	//価格ゲッター
+	public int getPrice() {
+		return price;
+	}
+	//価格セッター
+	public void setPrice(int price) {
+		this.price = price;
+	}
+	//在庫数ゲッター
+	public int getStock() {
+		return stock;
+	}
+	//在庫数セッター
+	public void setStock(int stock) {
+		this.stock = stock;
+	}
+
+	@Override
+	public String toString() {
+
+		return getName()
+				+ " "
+				+ getPrice()
+				+ "円 (残り"
+				+ getStock()
+				+ "個)";
+
+	}
+
+
+}

misson1014/src/misson1014/Main.java

@@ -0,0 +1,241 @@
+package misson1014;
+import java.util.Scanner;
+
+public class Main {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		//社員データ格納用配列作成
+		//EmployeeDataをBaseDataとして管理する
+		//（ポリモーフィズム）
+		BaseData[] employees = new BaseData[5];
+
+		//社員データ用インスタンス
+		employees[0] = new EmployeeData();
+		employees[1] = new EmployeeData();
+		employees[2] = new EmployeeData();
+		employees[3] = new EmployeeData();
+		employees[4] = new EmployeeData();
+		employees[0] = new EmployeeData();
+		employees[1] = new EmployeeData();
+		employees[2] = new EmployeeData();
+		employees[3] = new EmployeeData();
+		employees[4] = new EmployeeData();
+
+		//社員情報設定
+		//BaseData型なのでEmployeeDataへ
+		//キャストしてセッターを利用する
+		((EmployeeData) employees[0]).setIdEmployee("10000");
+		((EmployeeData) employees[0]).setNmEmployee("山田龍也");
+		((EmployeeData) employees[0]).setKnEmployee("ヤマダタツヤ");
+		((EmployeeData) employees[0]).setMailAddress("yamada@hoge.jp");
+		((EmployeeData) employees[0]).setPassword("aaa");
+		((EmployeeData) employees[0]).setIdDepartment("10");
+
+		((EmployeeData) employees[1]).setIdEmployee("10001");
+		((EmployeeData) employees[1]).setNmEmployee("高橋準");
+		((EmployeeData) employees[1]).setKnEmployee("タカハシジュン");
+		((EmployeeData) employees[1]).setMailAddress("jtaka@hoge.jp");
+		((EmployeeData) employees[1]).setPassword("bbb");
+		((EmployeeData) employees[1]).setIdDepartment("10");
+
+		((EmployeeData) employees[2]).setIdEmployee("10002");
+		((EmployeeData) employees[2]).setNmEmployee("麻枝史明");
+		((EmployeeData) employees[2]).setKnEmployee("マエダフミアキ");
+		((EmployeeData) employees[2]).setMailAddress("fmak@hoge.jp");
+		((EmployeeData) employees[2]).setPassword("ccc");
+		((EmployeeData) employees[2]).setIdDepartment("11");
+
+		((EmployeeData) employees[3]).setIdEmployee("10003");
+		((EmployeeData) employees[3]).setNmEmployee("丸戸章介");
+		((EmployeeData) employees[3]).setKnEmployee("マルトショウスケ");
+		((EmployeeData) employees[3]).setMailAddress("marusyo@hoge.jp");
+		((EmployeeData) employees[3]).setPassword("ddd");
+		((EmployeeData) employees[3]).setIdDepartment("12");
+
+		((EmployeeData) employees[4]).setIdEmployee("10004");
+		((EmployeeData) employees[4]).setNmEmployee("三宅武");
+		((EmployeeData) employees[4]).setKnEmployee("ミヤケタケシ");
+		((EmployeeData) employees[4]).setMailAddress("miya@hoge.jp");
+		((EmployeeData) employees[4]).setPassword("eee");
+		((EmployeeData) employees[4]).setIdDepartment("13");
+
+		//6段階目
+		//EmployeeDataとDepartmentDataを同じBaseData配列で管理する
+		//全データ格納用
+		BaseData[] allData = new BaseData[11];
+
+		//社員データをallDataへ格納
+		for (int i = 0; i < employees.length; i++) {
+			allData[i] = employees[i];
+		}
+
+		//部署データ作成
+		//先にDepartmentData型で生成
+		//値を設定後にallDataへ格納する
+		DepartmentData dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("10");
+		dept.setNmDepartment("役員");
+		allData[5] = dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("11");
+		dept.setNmDepartment("人事・総務部");
+		allData[6] = dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("12");
+		dept.setNmDepartment("経理部");
+		allData[7] = dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("13");
+		dept.setNmDepartment("システム開発事業部");
+		allData[8] = dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("14");
+		dept.setNmDepartment("教育事業部");
+		allData[9] = dept;
+
+		dept = new DepartmentData();
+		dept.setIdDepartment("15");
+		dept.setNmDepartment("営業企画部");
+		allData[10] = dept;
+
+		//BaseData配列を全件表示
+		//EmployeeDataとDepartmentDataでオーバーライドされたtoString()が実行
+		for (int i = 0; i < allData.length; i++) {
+			System.out.println(allData[i]);
+		}
+
+		//7段階目
+		//instanceofを使って型を判定
+		//EmployeeData件数とDepartmentData件数を集計
+		int employeeCount = 0;
+		int departmentCount = 0;
+
+		for (int i = 0; i < allData.length; i++) {
+
+			if (allData[i] instanceof EmployeeData) {
+				employeeCount++;
+			}
+
+			if (allData[i] instanceof DepartmentData) {
+				departmentCount++;
+			}
+		}
+
+		//集計結果表示
+		System.out.println("社員データ:" + employeeCount + "件");
+		System.out.println("部署データ:" + departmentCount + "件");
+
+
+		//8段階目
+		//EmployeeDataへキャストしてメールアドレスを取得する
+		for (int i = 0; i < allData.length; i++) {
+
+			if (allData[i] instanceof EmployeeData) {
+
+				EmployeeData employee = (EmployeeData) allData[i];
+
+				System.out.println(
+						employee.getMailAddress()
+						);
+			}
+		}
+
+		Scanner scanner = new Scanner(System.in);
+
+		//9段階目
+		//入力した部署名に所属する社員を検索
+		//部署名から部署IDを取得
+		//部署IDと一致する社員を検索
+		//社員名とメールアドレスを表示
+
+		System.out.println("検索したい部署名を入力してください");
+		String departmentName = scanner.nextLine();
+
+		//該当部署の部署ID
+		String targetDepartmentId = null;
+
+		//部署見つかったか
+		boolean departmentFound = false;
+
+		//部署検索
+		for (int i = 0; i < allData.length; i++) {
+
+			if (allData[i] instanceof DepartmentData) {
+				DepartmentData department =(DepartmentData) allData[i];
+				if (department.getNmDepartment().equals(departmentName)) {
+					targetDepartmentId = department.getIdDepartment();
+					departmentFound = true;
+
+					break;
+				}
+			}
+		}
+
+		//部署が存在した場合
+		if (departmentFound) {
+
+			System.out.println("所属社員一覧");
+			for (int i = 0; i < allData.length; i++) {
+				if (allData[i] instanceof EmployeeData) {
+					EmployeeData employee =(EmployeeData) allData[i];
+					if (employee.getIdDepartment().equals(targetDepartmentId)) {
+						System.out.println(employee.getNmEmployee()
+								+ "\t"
+								+ employee.getMailAddress()
+								);
+					}
+				}
+			}
+
+		} else {
+
+			System.out.println(
+					"該当する部署が見つかりませんでした");
+
+		}
+
+
+
+		//三日目4段階目用
+		//System.out.println(employees[0].toCSV());
+		//System.out.println(employees[0].getPrimaryKeyValue());
+
+		//検索機能
+		//ループ
+		while (true) {
+
+			System.out.println("検索したい社員IDを入力してください（終了する場合は0）");
+
+			String search = scanner.nextLine();
+
+			if (search.equals("0")) {
+				System.out.println("システムを終了します");
+				break;
+			}
+
+			boolean found = false;
+
+			//ID検索と比較
+			for (int i = 0; i < employees.length; i++) {
+				if (employees[i].getPrimaryKeyValue().equals(search)) {
+					System.out.println(employees[i]);
+					found = true;
+					break;
+				}
+			}
+			//該当なし
+			if (!found) {
+				System.out.println("該当する社員が見つかりませんでした");
+			}
+		}
+
+		scanner.close();
+	}
+}

misson1014/src/misson1014/Main1.java

@@ -0,0 +1,125 @@
+package misson1014;
+
+public class Main1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        //8段階目まで
+		
+        /*
+        EmployeeData[] employees = new EmployeeData[5];
+
+        employees[0] = new EmployeeData();
+        employees[1] = new EmployeeData();
+        employees[2] = new EmployeeData();
+        employees[3] = new EmployeeData();
+        employees[4] = new EmployeeData();
+
+        employees[0].setIdEmployee("10000");
+
+		8段階用
+        employees[0].setNmEmployee("");
+
+        employees[0].setKnEmployee("ヤマダタツヤ");
+        employees[0].setMailAddress("yamada@hoge.jp");
+        employees[0].setPassword("aaa");
+        employees[0].setIdDepartment("10");
+
+        employees[1].setIdEmployee("10001");
+        employees[1].setNmEmployee("高橋準");
+        employees[1].setKnEmployee("タカハシジュン");
+        employees[1].setMailAddress("jtaka@hoge.jp");
+        employees[1].setPassword("bbb");
+        employees[1].setIdDepartment("10");
+
+        employees[2].setIdEmployee("10002");
+        employees[2].setNmEmployee("麻枝史明");
+        employees[2].setKnEmployee("マエダフミアキ");
+        employees[2].setMailAddress("fmak@hoge.jp");
+        employees[2].setPassword("ccc");
+        employees[2].setIdDepartment("11");
+
+        employees[3].setIdEmployee("10003");
+        employees[3].setNmEmployee("丸戸章介");
+        employees[3].setKnEmployee("マルトショウスケ");
+        employees[3].setMailAddress("marusyo@hoge.jp");
+        employees[3].setPassword("ddd");
+        employees[3].setIdDepartment("12");
+
+        employees[4].setIdEmployee("10004");
+        employees[4].setNmEmployee("三宅武");
+        employees[4].setKnEmployee("ミヤケタケシ");
+        employees[4].setMailAddress("miya@hoge.jp");
+        employees[4].setPassword("eee");
+        employees[4].setIdDepartment("13");
+
+        for (int i = 0; i < employees.length; i++) {
+
+            System.out.println(employees[i]);
+
+        }
+
+        System.out.println(
+                "現在の社員データ件数:"
+                        + EmployeeData.getEmpCount()
+                        + "件");
+        */
+
+        /*ここから9段階↓
+		EmployeeData employee1 =
+				new EmployeeData(
+						"10000",
+						"",
+						"ヤマダタツヤ",
+						"yamada@hoge.jp",
+						"aaa",
+						"10"
+						);
+
+		EmployeeData employee2 =
+				new EmployeeData(
+						"",
+						"山田龍也",
+						"ヤマダタツヤ",
+						"yamada@hoge.jp",
+						"aaa",
+						"10"
+						);
+		*/
+		
+		//三日目５段階
+	       BaseData employee1 = new EmployeeData(
+	                        "10000",
+	                        "",
+	                        "ヤマダタツヤ",
+	                        "yamada@hoge.jp",
+	                        "aaa",
+	                        "10"
+	                );
+
+	        BaseData employee2 = new EmployeeData(
+	                        "",
+	                        "山田龍也",
+	                        "ヤマダタツヤ",
+	                        "yamada@hoge.jp",
+	                        "aaa",
+	                        "10"
+	                );
+
+	        System.out.println(employee1);
+
+	        System.out.println(employee1.toCSV());
+
+	        System.out.println(employee1.getPrimaryKeyValue());
+
+	        System.out.println(
+	                employee1.getPrimaryKeyValue().equals("10000")
+	        );
+
+	        System.out.println(
+	                employee2.getPrimaryKeyValue().equals("10000")
+	        );
+
+	}
+
+}

misson1014/src/misson1014/Shape.java

@@ -0,0 +1,17 @@
+package misson1014;
+
+public class Shape {
+    private String name;
+
+    public Shape(String name) {
+        this.name = name;
+    }
+
+    public double area() {
+        return 0.0;
+    }
+
+    public void showInfo() {
+        System.out.println(this.name + "の面積は" + this.area() + "です");
+    }
+}

misson1014/src/misson1014/Student.java

@@ -0,0 +1,31 @@
+package misson1014;
+
+public class Student {
+	int studentId;
+	String name;
+	//staticフィールド
+	static int studentCount = 0;
+
+	//コンストラクタ
+	public Student(int studentId, String name) {
+		//フィールド代入
+		this.studentId = studentId;
+		this.name = name;
+		studentCount++;
+	}
+
+	//学生情報
+	void printProfile() {
+
+		System.out.println(
+				"学籍番号:" + this.studentId
+				+ " 名前:" + this.name);
+	}
+
+	//現在の学生数用staticメソッド
+	public static int getStudentCount() {
+		return studentCount;
+
+	}
+
+}

src/main/java/BasicCheck1.java

@@ -1,28 +0,0 @@
-
-public class BasicCheck1 {
-
-	public static void main(String[] args) {
-		// TODO 自動生成されたメソッド・スタブ
-		Book book = new Book();
-		Book book1 = new Book();
-		
-		book.title = "吾輩は猫である";
-		book.author = "夏目漱石";
-		book.price = 800;
-		
-		System.out.println(book1.title);
-		System.out.println(book1.author);
-		System.out.println(book1.price);
-		
-		
-		System.out.println(book.title);
-		System.out.println(book.author);
-		System.out.println(book.price);
-	
-		
-	
-	}
-	
-	
-
-}

src/main/java/Book.java

@@ -1,18 +0,0 @@
-
-public class Book {
-	String title;
-	String author;
-	int price;
-	
-	public Book() {
-	title = "タイトル未設定";
-	author = "著者未設定";
-	price = 0;
-}
-
-	public Book(String title,String author,int price) {
-		this.title = title;
-		this.author = author;
-		this.price = price;
-}
-}

src/main/java/EmployeeData.java

@@ -1,142 +0,0 @@
-public class EmployeeData extends BaseData {
-		
-		private String idEmployee;
-	    private String nmEmployee;
-	    private String knEmployee;
-	    private String mailAddress;
-	    private String password;
-	    private String idDepartment;
-	    
-	    
-	    
-	    private static int empCount = 0;
-	    
-	    
-	    
-	    
-	    
-	    
-
-
-	    public String getIdEmployee() {
-			return idEmployee;
-		}
-
-	    public void setIdEmployee(String idEmployee) {
-	    		if (idEmployee == null || idEmployee == " " ||idEmployee == "　" || idEmployee.isEmpty()) {
-	            System.out.println("社員IDが空のため設定できませんでした");
-	            return;
-	    	}
-			this.idEmployee = idEmployee;
-		}
-		
-		public String getNmEmployee() {
-			return nmEmployee;
-		}
-
-
-		public void setNmEmployee(String nmEmployee) {
-			if (nmEmployee == null || nmEmployee == " " || nmEmployee == "　" || nmEmployee.isEmpty()){
-	            System.out.println("社員名が空のため設定できませんでした");
-	            return;
-			}
-			this.nmEmployee = nmEmployee;
-		}
-
-		public String getKnEmployee() {
-			return knEmployee;
-		}
-
-		public void setKnEmployee(String knEmployee) {
-			this.knEmployee = knEmployee;
-		}
-
-		public String getMailAddress() {
-			return mailAddress;
-		}
-
-		public void setMailAddress(String mailAddress) {
-			this.mailAddress = mailAddress;
-		}
-
-		public String getPassword() {
-			return password;
-		}
-
-		public void setPassword(String password) {
-			this.password = password;
-		}
-
-
-
-
-
-		public String getIdDepartment() {
-			
-			return idDepartment;
-		}
-
-
-
-
-
-		public void setIdDepartment(String idDepartment) {
-			this.idDepartment = idDepartment;
-		}
-		
-		
-		public boolean isMatchId(String id) {
-			
-			
-			
-		    if (this.idEmployee != null && this.idEmployee.equals(id)) {
-		        return true; 
-		    } else {
-		        return false;
-		    }
-		}
-		
-		public void showInfo() {
-	        System.out.println(this.toString());
-	    }
-
-
-		@Override
-	   public String toString(){
-    	   return(getIdEmployee() + "\t" + getNmEmployee() + "\t" + getKnEmployee() + "\t" + getMailAddress() + "\t" +getPassword() + "\t" +getIdDepartment()
-    	                );
-       }
-	   
-	   public EmployeeData() {
-		   empCount++;
-	    }
-	   public EmployeeData(String idEmployee, String nmEmployee, String knEmployee,String mailAddress, String password, String idDepartment) {
-		   this.setIdEmployee(idEmployee);
-	       this.setNmEmployee(nmEmployee);
-	       this.setKnEmployee(knEmployee);
-	       this.setMailAddress(mailAddress);
-	       this.setPassword(password);
-	       this.setIdDepartment(idDepartment);
-		   empCount++;
-	   }
-	   
-	   
-	   
-	   static int getEmpCount() {
-			return empCount;
-		}
-	   
-	   
-	   @Override
-	   public String toCSV() {
-		   return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + "," + getPassword() + "," + getIdDepartment();
-		   
-	   }
-	   
-	   @Override
-	   public String getPrimaryKeyValue(){
-		   return this.idEmployee;
-	   }
-	   
-	   
-}

src/main/java/Item.java

@@ -1,56 +0,0 @@
-
-class Item {
-
-	
-	private String name;
-	private int price;
-	private int stock;
-
-
-
-public String getName() {
-	return name;
-}
-
-
-
-public void setName(String name) {
-	this.name = name;
-}
-
-
-
-public int getPrice() {
-	return price;
-}
-
-
-
-public void setPrice(int price) {
-	this.price = price;
-}
-
-
-
-public int getStock() {
-	return stock;
-}
-
-
-
-public void setStock(int stock) {
-	this.stock = stock;
-}
-
-
-
-public void sell(int amount) {
-	this.setStock(this.getStock() - amount);
-}
-
-@Override
-public String toString() {
-	return getName() + " " + getPrice() + "円 (残り" + getStock() + "個)";
-}
-
-}

src/main/java/Main.java

@@ -1,73 +0,0 @@
-import java.util.Scanner;
-
-public class Main {
-
-	public static void main(String[] args) {
-		// TODO 自動生成されたメソッド・スタブ
-		BaseData[] employees = new BaseData[5];
-		
-		
-		employees[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
-		employees[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
-		employees[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
-		employees[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
-		employees[4] = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13");
-		
-	     for (int i = 0; i < employees.length; i++) {
-	    	 
-	    	 	//System.out.println(employees[i]);
-		
-	     	}
-	    
-	     System.out.println("現在のデータ件数："+EmployeeData.getEmpCount()+"件");
-	     
-	     
-	     while (true) {
-	    	 
-	    	
-	  
-	     
-	     //Scannerを使って、
-	     Scanner scanner = new Scanner(System.in);
-			//「検索したい社員IDを入力してください」と表示し
-	        System.out.println("検索したい社員IDを入力してください（終了する場合は0）");
-	        //キーボード入力を受け取る
-	        String idEmployee = scanner.next();
-	        
-	        
-	        
-	        if ("0".equals(idEmployee)) {
-	            System.out.println("システムを終了します");
-	            break; 
-	        }
-	        	
-			
-	        //employees配列をfor文で1件ずつ確認し
-	        for(int i = 0; i < employees.length; i++) {
-	        	
-	        	
-	        	
-	        	if (((EmployeeData) employees[i]).isMatchId(idEmployee)) {
-	        		//一致する社員が見つかったら、その社員のshowInfoメソッドを呼び出す
-	        		((EmployeeData) employees[i]).showInfo();
-	        	}
-	        	else {
-	        		//
-	        		System.out.println("検索したいIDが見つかりませんでした");
-	        		break;
-	        	}
-	        	
-	        }
-	        
-	        
-	        
-			
-	     }
-		 
-
-			 //System.out.println(employees[0].toCSV());
-			 //System.out.println(employees[0].getPrimaryKeyValue());
-
-	}
-	
-}

src/main/java/Student.java

@@ -1,30 +0,0 @@
-
-public class Student {
-
-	int studentId;
-	String name;
-	
-	
-	public void printProfile() {
-		System.out.println("学籍番号:"+this.studentId+" 名前:"+this.name);
-	}
-	
-	public Student(int StudentId,String name) {
-	
-		this.studentId = StudentId;
-		this.name = name;
-		
-	studentCount++;
-	
-	
-	}
-	
-	
-	public int getStudentCount() {
-		return studentCount;
-	}
-	
-	static int studentCount = 0;
-	
-	
-}

実行例_20261020/.classpath

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

実行例_20261020/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>実行例_20261020</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

実行例_20261020/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8

実行例_20261020/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=21
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=21

実行例_20261020/src/BaseData.java

@@ -0,0 +1,10 @@
+
+
+public abstract class BaseData {
+
+    public abstract String toString();
+
+    public abstract String toCSV();
+
+    public abstract String getPrimaryKeyValue();
+}

実行例_20261020/src/DepartmentData.java

@@ -0,0 +1,38 @@
+
+
+public class DepartmentData extends BaseData {
+
+	private String idDepartment;
+	private String nmDepartment;
+
+	public String getIdDepartment() {
+		return idDepartment;
+	}
+
+	public void setIdDepartment(String idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	public String getNmDepartment() {
+		return nmDepartment;
+	}
+
+	public void setNmDepartment(String nmDepartment) {
+		this.nmDepartment = nmDepartment;
+	}
+
+	@Override
+	public String toString() {
+		return getIdDepartment() + "\t" + getNmDepartment();
+	}
+
+	@Override
+	public String toCSV() {
+		return getIdDepartment() + "," + getNmDepartment();
+	}
+
+	@Override
+	public String getPrimaryKeyValue() {
+		return getIdDepartment();
+	}
+}

実行例_20261020/src/EmployeeData.java

@@ -0,0 +1,147 @@
+
+
+public class EmployeeData extends BaseData {
+	//社員ID
+	private String idEmployee;
+	//社員名
+	private String nmEmployee;
+	//社員名カナ
+	private String knEmployee;
+	//メールアドレス
+	private String mailAddress;
+	//パスワード
+	private String password;
+	//部署ID
+	private String idDepartment;
+	//社員データ件数
+	private static int empCount = 0;
+	//コンストラクタ
+	public EmployeeData() {
+		empCount++;
+	}
+	//コンストラクタ
+	public EmployeeData(
+			String idEmployee,
+			String nmEmployee,
+			String knEmployee,
+			String mailAddress,
+			String password,
+			String idDepartment) {
+
+		this.setIdEmployee(idEmployee);
+		this.setNmEmployee(nmEmployee);
+		this.setKnEmployee(knEmployee);
+		this.setMailAddress(mailAddress);
+		this.setPassword(password);
+		this.setIdDepartment(idDepartment);
+
+		empCount++;
+	}
+
+	//ゲッター
+	public String getIdEmployee() {
+		return idEmployee;
+	}
+	public String getNmEmployee() {
+		return nmEmployee;
+	}
+	public String getKnEmployee() {
+		return knEmployee;
+	}
+	public String getMailAddress() {
+		return mailAddress;
+	}
+	public String getPassword() {
+		return password;
+	}
+	public String getIdDepartment() {
+		return idDepartment;
+	}
+	//セッター
+	public void setIdEmployee(String idEmployee) {
+
+		if (idEmployee == null) {
+			System.out.println("社員IDが空のため設定できませんでした");
+			return;
+		}
+
+		if (idEmployee.trim().isEmpty()) {
+			System.out.println("社員IDが空のため設定できませんでした");
+			return;
+		}
+
+		this.idEmployee = idEmployee;
+	}
+
+	public void setNmEmployee(String nmEmployee) {
+
+		if (nmEmployee == null) {
+			System.out.println("社員名が空のため設定できませんでした");
+			return;
+		}
+
+		if (nmEmployee.trim().isEmpty()) {
+			System.out.println("社員名が空のため設定できませんでした");
+			return;
+		}
+
+		this.nmEmployee = nmEmployee;
+	}
+
+	public void setKnEmployee(String knEmployee) {
+		this.knEmployee = knEmployee;
+	}
+
+	public void setMailAddress(String mailAddress) {
+		this.mailAddress = mailAddress;
+	}
+
+	public void setPassword(String password) {
+		this.password = password;
+	}
+
+	public void setIdDepartment(String idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	//toString
+	@Override
+	public String toString() {
+
+		return getIdEmployee() + "\t"
+				+ getNmEmployee() + "\t"
+				+ getKnEmployee() + "\t"
+				+ getMailAddress() + "\t"
+				+ getPassword() + "\t"
+				+ getIdDepartment();
+	}
+
+	//CSV形式へ変換
+	@Override
+	public String toCSV() {
+
+		return getIdEmployee() + ","
+				+ getNmEmployee() + ","
+				+ getKnEmployee() + ","
+				+ getMailAddress() + ","
+				+ getPassword() + ","
+				+ getIdDepartment();
+	}
+
+	//キー取得
+	@Override
+	public String getPrimaryKeyValue() {
+
+		return getIdEmployee();
+	}
+
+	//ID一致判定
+	public boolean isMatchId(String id) {
+		return getIdEmployee().equals(id);
+	}
+
+	//件数取得
+	public static int getEmpCount() {
+		return empCount;
+	}
+}

実行例_20261020/src/Main.java

@@ -0,0 +1,214 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Scanner;
+
+public class Main {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner(System.in);
+
+		//社員データ格納用配列
+		//CSVから読み込んだ社員データを格納する
+		EmployeeData[] employees = new EmployeeData[100];
+
+		//読み込んだ件数管理用
+		int count = 0;
+
+		// EmployeeData.csv読込
+		try {
+
+			BufferedReader br = 
+					new BufferedReader(new FileReader("C:\\Users\\石原　叶大\\Documents\\em-oop\\EmployeeData.csv"));
+
+			String line;
+
+
+			// CSVを1行ずつ読込
+			while ((line = br.readLine()) != null) {
+
+				//カンマ区切りで分割
+				String[] data = line.split(",");
+
+				// EmployeeData生成
+				EmployeeData employee = new EmployeeData();
+
+
+				//CSVの値をEmployeeDataへ設定
+				employee.setIdEmployee(data[0]);
+				employee.setNmEmployee(data[1]);
+				employee.setKnEmployee(data[2]);
+				employee.setMailAddress(data[3]);
+				employee.setPassword(data[4]);
+				employee.setIdDepartment(data[5]);
+
+
+				//配列へ格納
+				employees[count] = employee;
+
+				//件数加算
+				count++;
+			}
+
+			//ファイルクローズ
+			br.close();
+
+		} catch (IOException e) {
+
+			//CSV読込失敗
+			System.out.println("CSVの読み込みに失敗しました");
+
+			return;
+		}
+
+		//システム開始
+		System.out.println("システムを開始します");
+
+		//ループ
+		//0が入力されるまで繰り返す
+		while (true) {
+
+			System.out.println();
+
+			//メニュー表示
+			System.out.println("1:検索 2:登録 3:更新 4:削除 0:終了");
+
+			//メニュー入力
+			String menu = scanner.nextLine();
+
+			//システム終了
+			if (menu.equals("0")) {
+				System.out.println("システムを終了します");
+
+				break;
+			}
+
+			//検索機能
+			else if (menu.equals("1")) {
+
+				//検索メニュー表示
+				System.out.println("1:全検索 2:条件検索 それ以外:戻る");
+
+				String searchMenu = scanner.nextLine();
+
+				//全検索
+				if (searchMenu.equals("1")) {
+
+					// 読み込んだ全社員を表示
+					for (int i = 0; i < count; i++) {
+
+						System.out.println(employees[i]);
+					}
+				}
+
+
+				//社員ID検索
+				else if (searchMenu.equals("2")) {
+
+					//ID入力
+					System.out.println("IDを入力してください");
+
+					String id = scanner.nextLine();
+
+					//検索判定
+					boolean found = false;
+
+					//配列検索
+					for (int i = 0; i < count; i++) {
+
+						//社員ID比較
+						if (employees[i].getPrimaryKeyValue().equals(id)) {
+
+							//一致データ表示
+							System.out.println(employees[i]);
+
+							found = true;
+							break;
+						}
+					}
+
+					//見つからなかった場合
+					if (!found) {System.out.println("該当する社員が見つかりませんでした");
+					}
+				}
+			}
+
+			//社員登録機能
+			else if (menu.equals("2")) {
+
+				//新しい社員データ生成
+				EmployeeData employee = new EmployeeData();
+
+				//社員ID入力
+				System.out.println("社員IDを入力してください");
+				employee.setIdEmployee(scanner.nextLine());
+
+				//社員名入力
+				System.out.println("社員名を入力してください");
+
+				employee.setNmEmployee(scanner.nextLine());
+
+				//フリガナ入力
+				System.out.println("フリガナを入力してください");
+				employee.setKnEmployee(scanner.nextLine());
+
+				//メールアドレス入力
+				System.out.println("メールアドレスを入力してください");
+				employee.setMailAddress(scanner.nextLine());
+
+				//パスワード入力
+				System.out.println("パスワードを入力してください");
+
+				employee.setPassword(scanner.nextLine());
+
+				//部署ID入力
+				System.out.println("部署IDを入力してください");
+				employee.setIdDepartment(scanner.nextLine());
+
+				//配列へ追加
+				employees[count] = employee;
+
+				//CSVへ追記
+				try {
+					PrintWriter pw =
+							new PrintWriter(new FileWriter("C:\\Users\\石原　叶大\\Documents\\em-oop\\EmployeeData.csv",true));
+
+					//CSVに1行追加
+					pw.println(employee.toCSV());
+					pw.close();
+
+				} catch (IOException e) {
+					System.out.println("CSVへの保存に失敗しました");
+
+					return;
+				}
+
+				// 件数加算
+				count++;
+
+				System.out.println("登録が完了しました");
+			}
+
+			//更新機能
+			//未実装あとから使う
+			else if (menu.equals("3")) {
+				System.out.println("更新機能は未実装です");
+			}
+
+			//削除機能
+			//未実装あとから使う
+			else if (menu.equals("4")) {
+				System.out.println("削除機能は未実装です");
+			}
+
+			//入力ミス
+			else {
+				System.out.println("正しく入力してください");
+			}
+		}
+
+		scanner.close();
+	}
+}