9段階目（何度でも検索できるようにしよう）

em-oop/src/BasicCheck1.java

@@ -10,6 +10,20 @@ public class BasicCheck1 {
 		System.out.println(book.title);
 		System.out.println(book.author);
 		System.out.println(book.price);
+
+		System.out.println();
+
+		//9/15段階１
+		Book book1 = new Book();
+		System.out.println(book1.title);
+		System.out.println(book1.author);
+		System.out.println(book1.price);
+
+		Book book2 = new Book("銀河鉄道の夜", "宮沢賢治", 500);
+		System.out.println(book2.title);
+		System.out.println(book2.author);
+		System.out.println(book2.price);
+
 	}
 
 }

em-oop/src/BasicCheck2.java

@@ -3,10 +3,13 @@ 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 student = new Student();
-		student.studentId = 1;
-		student.name = "鈴木一郎";
-		student.printProfile();
+		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:" + Student.getStudentCount() + "人");
 	}
 
 }

em-oop/src/BasicCheck3.java

@@ -7,19 +7,19 @@ public class BasicCheck3 {
 		for (int i = 0; i < items.length; i++) {
 			items[i] = new Item();
 		}
-		items[0].name = "ノート";
-		items[0].price = 120;
-		items[0].stock = 50;
-		items[1].name = "消しゴム";
-		items[1].price = 80;
-		items[1].stock = 30;
-		items[2].name = "鉛筆";
-		items[2].price = 60;
-		items[2].stock = 100;
+		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);
 
 		for (Item i : items) {
 			i.sell(5);
-			System.out.println(i.name + " " + i.price + "円　残り" + i.stock + "個　合計金額" + i.totalPrice() + "円");
+			System.out.println(i);
 		}
 	}
 

em-oop/src/Book.java

@@ -3,4 +3,18 @@ public class Book {
 	String title;
 	String author;
 	int price;
+
+	//コンストラクタ
+	public Book() {
+		title = "タイトル未設定";
+		author = "著者未設定";
+		price = 0;
+	}
+
+	//引数ありコンストラクタ
+	public Book(String title, String author, int price) {
+		this.title = title;
+		this.author = author;
+		this.price = price;
+	}
 }

em-oop/src/EmployeeData.java

@@ -1,15 +1,115 @@
 
 public class EmployeeData {
-	String idEmployee;
-	String nmEmployee;
-	String knEmployee;
-	String mailAddress;
-	String password;
-	String idDepartment;
+	private String idEmployee;
+	private String nmEmployee;
+	private String knEmployee;
+	private String mailAddress;
+	private String password;
+	private String idDepartment;
+	private static int empCount = 0;
+	static final String COMPANY_NAME = "Rhizome";
 
-	void showInfo() {
-		System.out.println(this.idEmployee + "\t" + this.nmEmployee
-				+ "\t" + this.knEmployee + "\t" + this.mailAddress
-				+ "\t" + this.password + "\t" + this.idDepartment);
+	//コンストラクタ
+	public EmployeeData() {
+		empCount++;
 	}
+
+	//引数ありコンストラクタ
+	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++;
+
+	}
+
+	@Override
+	public String toString() {
+		return this.idEmployee + "\t" + this.nmEmployee
+				+ "\t" + this.knEmployee + "\t" + this.mailAddress
+				+ "\t" + this.password + "\t" + this.idDepartment;
+	}
+
+	public boolean isMatchId(String id) {
+		return getIdEmployee().equals(id);
+	}
+
+	public static boolean isMatchId(EmployeeData[] employees, String id) {
+		for (EmployeeData e : employees) {
+			if (e.isMatchId(id))
+				return true;
+
+		}
+		return false;
+	}
+
+	public String getIdEmployee() {
+		return idEmployee;
+	}
+
+	public void setIdEmployee(String idEmployee) {
+		if (!check(idEmployee, "社員ID"))
+			return;
+		this.idEmployee = idEmployee;
+	}
+
+	public String getNmEmployee() {
+		return nmEmployee;
+	}
+
+	public void setNmEmployee(String nmEmployee) {
+		if (!check(nmEmployee, "社員名"))
+			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 static int getEmpCount() {
+		return empCount;
+	}
+
+	private boolean check(String str, String stringName) {
+		if (str == null || str.strip().length() == 0) {
+			System.out.println(stringName + "が空のため設定できませんでした");
+			return false;
+		}
+		return true;
+	}
+
 }

em-oop/src/Item.java

@@ -1,14 +1,43 @@
 
 public class Item {
-	String name;
-	int price;
-	int stock;
+	private String name;
+	private int price;
+	private int stock;
 
 	void sell(int amount) {
-		this.stock -= amount;
+		this.setStock(this.getStock() - amount);
+	}
+
+	@Override
+	public String toString() {
+		return this.getName() + "　" + this.getPrice() + "円（残り" + this.getStock() + "個）";
 	}
 
 	int totalPrice() {
 		return this.price * this.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;
+	}
 }

em-oop/src/Main.java

@@ -1,62 +1,119 @@
+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
-		EmployeeData employee = new EmployeeData();
+		System.out.println("会社名:" + EmployeeData.COMPANY_NAME);
 
-		employee.idEmployee = "10000";
-		employee.nmEmployee = "山田龍也";
-		employee.knEmployee = "ヤマダタツヤ";
-		employee.mailAddress = "yamada@hoge.jp";
-		employee.password = "aaa";
-		employee.idDepartment = "10";
-
-		employee.showInfo();
+		//		EmployeeData employee = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ",
+		//				"yamada@hoge.jp", "aaa", "10");
+		//		System.out.println(employee);
+		//
+		//		System.out.println();
 
 		EmployeeData[] employees = new EmployeeData[5];
 		for (int i = 0; i < employees.length; i++) {
 			employees[i] = new EmployeeData();
 		}
 
-		//やり方わからないのでごり押し
-		employees[0].idEmployee = "10000";
-		employees[0].nmEmployee = "山田龍也";
-		employees[0].knEmployee = "ヤマダタツヤ";
-		employees[0].mailAddress = "yamada@hoge.jp";
-		employees[0].password = "aaa";
-		employees[0].idDepartment = "10";
+		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].idEmployee = "10001";
-		employees[1].nmEmployee = "高橋準";
-		employees[1].knEmployee = "タカハシジュン";
-		employees[1].mailAddress = "jtaka@hoge.jp";
-		employees[1].password = "bbb";
-		employees[1].idDepartment = "10";
+		employees[1].setIdEmployee("10001");
+		employees[1].setNmEmployee("高橋準\t");
+		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].idEmployee = "10002";
-		employees[2].nmEmployee = "麻枝史明";
-		employees[2].knEmployee = "マエダフミアキ";
-		employees[2].mailAddress = "fmak@hoge.jp";
-		employees[2].password = "ccc";
-		employees[2].idDepartment = "11";
+		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].idEmployee = "10003";
-		employees[3].nmEmployee = "丸戸章介";
-		employees[3].knEmployee = "マルトショウスケ";
-		employees[3].mailAddress = "marusyo@hoge.jp";
-		employees[3].password = "ddd";
-		employees[3].idDepartment = "12";
+		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].idEmployee = "10004";
-		employees[4].nmEmployee = "三宅武";
-		employees[4].knEmployee = "ミヤケタケシ";
-		employees[4].mailAddress = "miya@hoge.jp";
-		employees[4].password = "eee";
-		employees[4].idDepartment = "13";
+		employees[4].setIdEmployee("10004");
+		employees[4].setNmEmployee("三宅武\t");
+		employees[4].setKnEmployee("ミヤケタケシ");
+		employees[4].setMailAddress("miya@hoge.jp");
+		employees[4].setPassword("eee");
+		employees[4].setIdDepartment("13");
 
 		for (EmployeeData e : employees) {
-			e.showInfo();
+			System.out.println(e);
+			;
+		}
+		System.out.println("現在の社員のデータ件数：" + EmployeeData.getEmpCount() + "件");
+
+		System.out.println();
+
+		//nullおよび前後の空白を取り除いた結果が空文字チェック
+		EmployeeData emp = new EmployeeData("10000", "デフォルト", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
+		System.out.println(emp);
+		emp.setNmEmployee(null);
+		System.out.println(emp);
+		emp.setNmEmployee("  　　");
+		System.out.println(emp);
+
+		System.out.println();
+
+		EmployeeData emptyEmployee = new EmployeeData("", "", "", "", "", "");
+		System.out.println(emptyEmployee);
+
+		System.out.println();
+
+		//IDが一致するか
+		boolean matchIdBool = false;
+		System.out.println("10002 を検索します");
+		for (EmployeeData e : employees) {
+			matchIdBool = e.isMatchId("10002");
+			if (matchIdBool)
+				break;
+		}
+		System.out.println(matchIdBool);
+
+		System.out.println("99999 を検索します");
+		System.out.println(EmployeeData.isMatchId(employees, "99999"));
+
+		System.out.println("10003 を検索します");
+		System.out.println(EmployeeData.isMatchId(employees, "10003"));
+
+		System.out.println();
+
+		Scanner scanner = new Scanner(System.in);
+		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）");
+			System.out.print(">>>>");
+			String findId = scanner.nextLine();
+			if (findId.equals("0")) {
+				System.out.println("システムを終了します");
+				return;
+			}
+
+			boolean matchFlag = false;
+
+			for (EmployeeData e : employees) {
+				if (e.isMatchId(findId)) {
+					System.out.println(e);
+					matchFlag = true;
+					break;
+				}
+			}
+			if (!matchFlag) {
+				System.out.println("該当する社員が見つかりませんでした");
+			}
+			System.out.println();
 		}
 
 	}

em-oop/src/Student.java

@@ -2,8 +2,19 @@
 public class Student {
 	int studentId;
 	String name;
+	static int studentCount = 0;
 
 	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 static int getStudentCount() {
+		return studentCount;
+	}
 }