From 9abebd30aad7e7a242ea67dbce15a6a3b776ab68 Mon Sep 17 00:00:00 2001
From: t-eguchi <26-t-eguchi-tmn@it-college.co.jp>
Date: Wed, 16 Sep 2026 14:41:32 +0900
Subject: [PATCH] =?UTF-8?q?=EF=BC=94=E6=AE=B5=E9=9A=8E=E7=9B=AE=E7=B5=82?=
 =?UTF-8?q?=E3=82=8F=E3=82=8A=E3=81=BE=E3=81=97=E3=81=9F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 em-oop/src/BaseData.java     | 10 ++++++++++
 em-oop/src/EmployeeData.java | 12 +++++++++++-
 em-oop/src/Main.java         | 31 ++++++++++++++++++-------------
 3 files changed, 39 insertions(+), 14 deletions(-)
 create mode 100644 em-oop/src/BaseData.java

diff --git a/em-oop/src/BaseData.java b/em-oop/src/BaseData.java
new file mode 100644
index 0000000..6661c90
--- /dev/null
+++ b/em-oop/src/BaseData.java
@@ -0,0 +1,10 @@
+
+public abstract class BaseData {
+
+	public abstract String toString();
+
+	public abstract String toCSV();
+
+	public abstract String getPrimaryKeyValue();
+
+}
diff --git a/em-oop/src/EmployeeData.java b/em-oop/src/EmployeeData.java
index 6599e38..4cf3b68 100644
--- a/em-oop/src/EmployeeData.java
+++ b/em-oop/src/EmployeeData.java
@@ -1,5 +1,5 @@
 
-public class EmployeeData {
+public class EmployeeData extends BaseData {
 	private String idEmployee;
 	private String nmEmployee;
 	private String knEmployee;
@@ -91,4 +91,14 @@ public class EmployeeData {
 
 	}
 
+	@Override
+	public String toCSV() {
+		return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + ","
+				+ getPassword() + "," + getIdDepartment();
+	}
+
+	public String getPrimaryKeyValue() {
+		return getIdEmployee();
+	}
+
 }
\ No newline at end of file
diff --git a/em-oop/src/Main.java b/em-oop/src/Main.java
index f62c5b6..b566adf 100644
--- a/em-oop/src/Main.java
+++ b/em-oop/src/Main.java
@@ -1,21 +1,26 @@
 
 public class Main {
 	public static void main(String[] args) {
-		EmployeeData[] employees = new EmployeeData[5];
+		//		EmployeeData[] employees = new EmployeeData[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", "ミタケタケシ", "miya@hoge.jp", "eee", "13");
+		//
+		//		for (int i = 0; i < employees.length; i++) {
+		//
+		//			System.out.println(employees[i]);
+		//
+		//		}
+		//
+		//		System.out.println("現在の社員データ件数：" + EmployeeData.getEmpCount() + "件");
 
-		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", "ミタケタケシ", "miya@hoge.jp", "eee", "13");
+		EmployeeData employee = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
 
-		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");
+		System.out.println(employee.toCSV());
+		System.out.println(employee.getPrimaryKeyValue());
 
 	}