追加問題まで実装完了済み

.classpath

@@ -0,0 +1,6 @@
+<?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

@@ -0,0 +1,2 @@
+/bin/
+/build/

.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>em-oop</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<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>

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

@@ -0,0 +1,9 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.compliance=21
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+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

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

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

file/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

file/EmployeeData.csv

@@ -0,0 +1,6 @@
+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
+1,1,1,1,1,1
+3,2,2,2,2,2
+4,4,4,4,4,4

src/main/java/BaseData.java

@@ -0,0 +1,8 @@
+
+public abstract class BaseData {
+	
+	public abstract String toString();
+	public abstract String toCSV();
+	public abstract String getPrimaryKeyValue();
+	
+}

src/main/java/DepartmentData.java

@@ -0,0 +1,49 @@
+
+public class DepartmentData extends BaseData {
+	
+	private String idDepartment;
+	private String nmDepartment;
+	
+	public DepartmentData() {
+		
+	}
+
+	public DepartmentData(String idDepartment,String nmDepartment) {
+		this.setIdDepartment(idDepartment);
+		this.setNmDepartment(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 this.getIdDepartment()+"\t"
+			  +this.getNmDepartment();
+	}
+
+	@Override
+	public String toCSV() {
+		return this.getIdDepartment()+","
+			   +this.getNmDepartment();
+	}
+
+	@Override
+	public String getPrimaryKeyValue() {
+		return this.getIdDepartment();
+	}
+
+}

src/main/java/EmployeeData.java

@@ -0,0 +1,123 @@
+
+public class EmployeeData extends BaseData {
+
+	static final String COMPANY_NAME = "Rhizome";
+	private static int empCount = 0;
+	private String idEmployee;
+	private String nmEmployee;
+	private String knEmployee;
+	private String mailAddress;
+	private String password;
+	private String idDepartment;
+
+	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++;
+	}
+
+	public String getIdEmployee() {
+		return idEmployee;
+	}
+
+	public void setIdEmployee(String idEmployee) {
+		if (idEmployee.strip().length()==0) {
+			System.out.println("社員IDが空のため設定できませんでした");
+			System.exit(0);
+		} else {
+			this.idEmployee = idEmployee;
+		}
+	}
+
+	public String getNmEmployee() {
+		return nmEmployee;
+	}
+
+	public void setNmEmployee(String nmEmployee) {
+		if (nmEmployee.strip().length()==0) {
+			System.out.println("社員名が空のため設定できませんでした");
+			System.exit(0);
+		} else {
+			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 static int getEmpCount() {
+		return empCount;
+	}
+
+	@Override
+	public String toString() {
+		return this.getIdEmployee()+"\t"
+			  +this.getNmEmployee()+"\t"
+			  +this.getKnEmployee()+"\t"
+			  +this.getMailAddress()+"\t"
+			  +this.getPassword()+"\t"
+			  +this.getIdDepartment();
+	}
+
+//	public boolean isMatchId(String id) {
+//		return id.equals(this.getIdEmployee()) ;
+//	}
+	
+	@Override
+	public String toCSV() {
+		return this.getIdEmployee()+","
+			  +this.getNmEmployee()+","
+			  +this.getKnEmployee()+","
+			  +this.getMailAddress()+","
+			  +this.getPassword()+","
+			  +this.getIdDepartment();
+	}
+	
+	@Override
+	public String getPrimaryKeyValue() {
+		return this.getIdEmployee();
+	}
+
+}

src/main/java/Main.java

@@ -0,0 +1,127 @@
+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
+		
+		
+		//====================設定====================
+		BaseData[] employees = new BaseData[5];
+		
+		BaseData employee1 = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
+		employees[1-1] = employee1;
+		BaseData employee2 = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
+		employees[2-1] = employee2;
+		BaseData employee3 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
+		employees[3-1] = employee3;
+		BaseData employee4 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
+		employees[4-1] = employee4;
+		BaseData employee5 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13");
+		employees[5-1] = employee5;
+		
+		BaseData[] allData = new BaseData[11];
+		
+		allData[0] = employees[0];
+		allData[1] = employees[1];
+		allData[2] = employees[2];
+		allData[3] = employees[3];
+		allData[4] = employees[4];
+		
+		DepartmentData department1 = new DepartmentData();
+		department1.setIdDepartment("10");
+		department1.setNmDepartment("役員");
+		allData[5] = department1;
+		DepartmentData department2 = new DepartmentData();
+		department2.setIdDepartment("11");
+		department2.setNmDepartment("人事");
+		allData[6] = department2;
+		DepartmentData department3 = new DepartmentData();
+		department3.setIdDepartment("12");
+		department3.setNmDepartment("経理部");
+		allData[7] = department3;
+		DepartmentData department4 = new DepartmentData();
+		department4.setIdDepartment("13");
+		department4.setNmDepartment("システム開発事業部");
+		allData[8] = department4;
+		DepartmentData department5 = new DepartmentData();
+		department5.setIdDepartment("14");
+		department5.setNmDepartment("教育事業部");
+		allData[9] = department5;
+		DepartmentData department6 = new DepartmentData();
+		department6.setIdDepartment("15");
+		department6.setNmDepartment("営業企画部");
+		allData[10] = department6;
+		
+		// 段階７＋８
+		int nEmployeeData = 0;
+		int nDepartmentData = 0;
+		for ( BaseData data : allData ) {
+//			System.out.println(data);
+			if ( data instanceof EmployeeData ) {
+				System.out.println(((EmployeeData)data).getMailAddress());
+				nEmployeeData++;
+				continue;
+			}
+			if ( data instanceof DepartmentData ) {
+				nDepartmentData++;
+				continue;
+			}
+		}
+		System.out.println("社員データ："+nEmployeeData+"件");
+		System.out.println("部署データ："+nDepartmentData+"件");
+		
+		// 段階９
+		String ID = "";
+		for ( BaseData data : allData ) {
+			if ( data instanceof DepartmentData ) {
+				if ( ((DepartmentData)data).getNmDepartment().equals("システム開発事業部") ) {
+					ID = data.getPrimaryKeyValue();
+				}
+			}
+		}
+		for ( BaseData data : allData ) {
+			if ( data instanceof EmployeeData ) {
+				if ( ((EmployeeData)data).getIdDepartment().equals(ID) ) {
+					System.out.println(((EmployeeData)data).getNmEmployee()+"	"+((EmployeeData)data).getMailAddress());
+				}
+			}
+		}
+		
+		
+		//====================表示====================
+		System.out.println(EmployeeData.COMPANY_NAME);
+		for ( BaseData employee : employees ) {
+			System.out.println(employee);
+		}
+		System.out.println("現在の社員データ件数："+EmployeeData.getEmpCount()+"件");
+		
+		
+		//====================検索====================
+		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）");
+			Scanner sc = new Scanner(System.in);
+			String id = sc.nextLine();
+			
+			if ( id.equals("0") ) {
+				System.out.println("システムを終了します");
+				break;
+			}
+			
+			boolean matchId = false;
+			for ( BaseData employee : employees ) {
+				if ( employee.getPrimaryKeyValue().equals(id) ) {
+					matchId = true;
+					System.out.println(employee);;
+				}
+			}
+			if ( matchId==false ) {
+				System.out.println("該当する社員が見つかりませんでした");
+			}
+		
+		}
+	
+	}
+
+}

src/main/java/MainNew.java

@@ -0,0 +1,280 @@
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Scanner;
+
+public class MainNew {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		
+		
+		Scanner sc = new Scanner(System.in);
+		while (true) {
+			
+			// csvファイルからデータを読み込む
+			ArrayList<BaseData> allData = readCSV();
+			
+			// 会社情報表示
+			//System.out.println(EmployeeData.COMPANY_NAME);
+			
+			
+			//====================管理機能====================
+			
+			System.out.println("1：検索　2：登録　3：更新　4：削除　0：終了");
+			// 操作項目入力
+			String index = sc.nextLine();
+			
+			// 入力１＝検索
+			if (index.equals("1")) {
+				System.out.println("1：全検索　2：条件検索　それ以外：戻る");
+				String indexSearch = sc.nextLine();
+				if (indexSearch.equals("1")) {
+					// 全検索
+					displayEmployee(allData);
+					continue;	
+				} else if (indexSearch.equals("2")) {
+					// 条件検索
+					searchEmployee(allData,sc);
+					continue;
+				} else {
+					continue;
+				}
+			}
+			
+			// 入力２＝登録
+			if (index.equals("2")) {
+				registerEmployee(allData,sc);
+			}
+			
+			// 入力３＝更新
+			if (index.equals("3")) {
+				updateEmployee(allData,sc);
+			}
+			
+			// 入力４＝削除
+			if (index.equals("4")) {
+				removeEmployee(allData,sc);
+			}
+			
+			// 入力０＝終了
+			if ( index.equals("0") ) {
+				System.out.println("システムを終了します");
+				break;
+			}
+			
+		}
+		
+	}
+	
+	
+	// csvファイルから情報を読み込む
+	public static ArrayList<BaseData> readCSV() {
+		
+		ArrayList<BaseData> allData = new ArrayList<BaseData>();
+		try {
+			
+			// 社員情報を読み込む
+			File empFile = new File("/Users/鈴木　皓介/Documents/em-oop/file/EmployeeData.csv");
+			String empline = "";
+			BufferedReader empbr = new BufferedReader(new InputStreamReader(new FileInputStream(empFile),"UTF-8"));
+			while ((empline=empbr.readLine())!=null) {
+				String[] data = empline.split(",",0);
+				BaseData employee = new EmployeeData(data[0],data[1],data[2],data[3],data[4],data[5]);
+				allData.add(employee);
+			}
+			
+			// 部署情報を読み込む
+			File depFile = new File("/Users/鈴木　皓介/Documents/em-oop/file/DepartmentData.csv");
+			String depline = "";
+			BufferedReader depbr = new BufferedReader(new InputStreamReader(new FileInputStream(depFile),"UTF-8"));
+			while ((depline=depbr.readLine())!=null) {
+				String[] data = depline.split(",",0);
+				BaseData department = new DepartmentData(data[0],data[1]);
+				allData.add(department);
+			}
+			
+		} catch (IOException err) {
+			System.exit(0);
+		}
+		return allData;
+		
+	}
+	
+	
+	// csvファイルに社員データを書き込む
+	public static void writeEmployee(ArrayList<BaseData> allData) {
+		
+		try {
+			
+			// 社員情報を書き込む
+			File empFile = new File("/Users/鈴木　皓介/Documents/em-oop/file/EmployeeData.csv");
+			FileWriter empfr = new FileWriter(empFile);
+			for ( BaseData data : allData ) {
+				if ( data instanceof EmployeeData ) {
+					empfr.append(data.toCSV()+"\n");
+				}
+			}
+			empfr.close();
+			
+		} catch (IOException err) {
+			System.exit(0);
+		}
+		
+	}
+	
+	
+	// 全検索(社員情報表示)
+	public static void displayEmployee(ArrayList<BaseData> allData) {
+		
+		for ( BaseData data : allData ) {
+			if ( data instanceof EmployeeData ) {
+				System.out.println(data);
+			}
+		}
+		System.out.println();
+		
+	}
+	
+	
+	// 社員ID照合
+	public static boolean matchIdEmployee(ArrayList<BaseData> allData,String id) {
+		
+		boolean isMatched = false;
+		for ( BaseData data : allData ) {
+			if ( data instanceof EmployeeData ) {
+				if ( data.getPrimaryKeyValue().equals(id) ) {
+					isMatched = true;
+					break;
+				}
+			}
+		}
+		return isMatched;
+		
+	}
+	
+	
+	// ID照合→該当BaseData配列インデックス取得
+	public static int getIndexArray(ArrayList<BaseData> allData,String id) {
+		
+		int index = 0;
+		for ( BaseData data : allData ) {
+			if ( data instanceof EmployeeData ) {
+				if ( data.getPrimaryKeyValue().equals(id) ) {
+					break;
+				}
+			}
+			index++;
+		}
+		return index;
+		
+	}
+	
+	
+	// 条件検索
+	public static void searchEmployee(ArrayList<BaseData> allData,Scanner sc) {
+		
+		System.out.println("検索したい社員IDを入力してください");
+		String id = sc.nextLine();
+		
+		boolean isMatched = matchIdEmployee(allData,id);
+		if (isMatched==false) {
+			System.out.println("入力されたIDに該当する社員が見つかりませんでした");
+		}
+		if (isMatched==true) {
+			System.out.println(allData.get(getIndexArray(allData,id)));
+		}
+		System.out.println();
+		
+	}
+	
+	
+	// 登録
+	public static void registerEmployee(ArrayList<BaseData> allData,Scanner sc) {
+		
+		System.out.println("登録したい社員IDを入力してください");
+		String id = sc.nextLine();
+		
+		boolean isMatched = matchIdEmployee(allData,id);
+		if (isMatched==false) {
+			String[] newdata = new String[6];
+			newdata[0] = id;
+			System.out.println("社員名を入力してください");
+			newdata[1] = sc.nextLine();
+			System.out.println("フリガナを入力してください");
+			newdata[2] = sc.nextLine();
+			System.out.println("メールアドレスを入力してください");
+			newdata[3] = sc.nextLine();
+			System.out.println("パスワードを入力してください");
+			newdata[4] = sc.nextLine();
+			System.out.println("部署IDを入力してください");
+			newdata[5] = sc.nextLine();
+			System.out.println("登録が完了しました");
+			allData.add(new EmployeeData(newdata[0],newdata[1],newdata[2],newdata[3],newdata[4],newdata[5]));
+			writeEmployee(allData);
+		}
+		if (isMatched==true) {
+			System.out.println("入力されたIDは既に登録されています");
+		}
+		
+	}
+	
+	
+	// 更新
+	public static void updateEmployee(ArrayList<BaseData> allData,Scanner sc) {
+		
+		System.out.println("更新したい社員IDを入力してください");
+		String id = sc.nextLine();
+		
+		boolean isMatched = matchIdEmployee(allData,id);
+		if (isMatched==false) {
+			System.out.println("入力されたIDに該当する社員が見つかりませんでした");
+		}
+		if (isMatched==true) {	
+			BaseData data = allData.get(getIndexArray(allData,id));
+			System.out.println("社員名を入力してください");
+			((EmployeeData)data).setNmEmployee(sc.nextLine());
+			System.out.println("フリガナを入力してください");
+			((EmployeeData)data).setKnEmployee(sc.nextLine());
+			System.out.println("メールアドレスを入力してください");
+			((EmployeeData)data).setMailAddress(sc.nextLine());
+			System.out.println("パスワードを入力してください");
+			((EmployeeData)data).setPassword(sc.nextLine());
+			System.out.println("部署IDを入力してください");
+			((EmployeeData)data).setIdDepartment(sc.nextLine());
+			System.out.println("更新が完了しました");
+			writeEmployee(allData);	
+		}
+		
+	}
+	
+	
+	// 消去
+	public static void removeEmployee(ArrayList<BaseData> allData,Scanner sc) {
+		
+		System.out.println("削除したい社員IDを入力してください");
+		String id = sc.nextLine();
+		
+		boolean isMatched = matchIdEmployee(allData,id);
+		if (isMatched==false) {
+			System.out.println("入力されたIDに該当する社員が見つかりませんでした");
+		}
+		if (isMatched==true) {
+			System.out.println("指定されたIDに該当する社員の情報を削除しますか？　Y/y");
+			System.out.println("Y/y以外：キャンセル");
+			String flag = sc.nextLine();
+			if (flag.equals("Y")||flag.equals("y")) {
+				allData.remove(getIndexArray(allData,id));
+				System.out.println("削除が完了しました");
+				writeEmployee(allData);
+			}
+		}
+		
+	}
+	
+	
+}

実行例（追加問題含め）/file/EmployeeData.csv

@@ -1,10 +1,8 @@
-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
+2,2,2,2,2,2