7段階目（staticで社員データの件数を数えよう）

em-oop/src/EmployeeData.java

@@ -6,10 +6,12 @@ public class EmployeeData {
 	private String mailAddress;
 	private String password;
 	private String idDepartment;
+	private static int empCount = 0;
+	static final String COMPANY_NAME = "Rhizome";
 
 	//コンストラクタ
 	public EmployeeData() {
-
+		empCount++;
 	}
 
 	//引数ありコンストラクタ
@@ -21,6 +23,9 @@ public class EmployeeData {
 		this.setMailAddress(mailAddress);
 		this.setPassword(password);
 		this.setIdDepartment(idDepartment);
+
+		empCount++;
+
 	}
 
 	@Override
@@ -78,4 +83,8 @@ public class EmployeeData {
 		this.idDepartment = idDepartment;
 	}
 
+	public static int getEmpCount() {
+		return empCount;
+	}
+
 }

em-oop/src/Main.java

@@ -1,17 +1,19 @@
 
 public class Main {
 	public static void main(String[] args) {
-		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("会社名:" + EmployeeData.COMPANY_NAME);
+
+		//		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();
 		}
 
-		System.out.println();
-
 		employees[0].setIdEmployee("10000");
 		employees[0].setNmEmployee("山田龍也");
 		employees[0].setKnEmployee("ヤマダタツヤ");
@@ -51,6 +53,7 @@ public class Main {
 			System.out.println(e);
 			;
 		}
+		System.out.println("現在の社員のデータ件数：" + EmployeeData.getEmpCount() + "件");
 
 	}