Basedata

.classpath

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+<?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

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+/build/

.project

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+<?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

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+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

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

em_oop_kawara/BaseData.java

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+
+public abstract class BaseData{
+	public abstract String toString();
+	public abstract String toCSV();
+	public abstract String getPrimaryKeyValue();
+	
+	
+
+}

src/main/java/BasicCheck1.java

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+
+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/BasicCheck2.java

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+
+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");
+        
+        student1.printProfile();
+        student2.printProfile();
+        student3.printProfile();
+        
+        System.out.println("現在の生徒数: " + student1.getStudentCount() + "人");
+        
+	}
+
+}

src/main/java/BasicCheck3.java

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+
+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[] items = new Item[3];
+		
+		items[0] = 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);
+		
+		for (int i = 0; i < items.length; i++) {
+            items[i].sell(5);
+        }
+		
+		for (int i = 0; i < items.length; i++) {
+            System.out.println(items[i]);
+            
+        }
+		
+	}
+
+}

src/main/java/Book.java

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+
+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

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+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

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+
+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

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+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

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+
+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;
+	
+	
+}