diff --git a/em-oop/src/Main.java b/em-oop/src/Main.java
index 99091bf..0739c03 100644
--- a/em-oop/src/Main.java
+++ b/em-oop/src/Main.java
@@ -23,20 +23,42 @@ public class Main {
 		allData[9] = new DepartmentData("14", "教育事業部");
 		allData[10] = new DepartmentData("15", "営業企画部");
 
-		//		int count = 0;
-		//		int countt = 0;
+		String targetDeptId = "";
+
+		for (int i = 0; i < allData.length; i++) {
+
+			if (allData[i] instanceof DepartmentData) {
+				DepartmentData dept = (DepartmentData) allData[i];
+
+				if (dept.getNmDepartment().equals("システム開発事業部")) {
+					targetDeptId = dept.getIdDepartment();
+					break;
+				}
+			}
+		}
+
 		for (int i = 0; i < allData.length; i++) {
 			if (allData[i] instanceof EmployeeData) {
-				//				count++;
 				EmployeeData emp = (EmployeeData) allData[i];
-
-				System.out.println(emp.getMailAddress());
-
+				if (emp.getIdDepartment().equals(targetDeptId)) {
+					System.out.println(emp.getNmEmployee() + "\t" + emp.getMailAddress());
+				}
 			}
-			//			else if (allData[i] instanceof DepartmentData) {
-			//				countt++;
-			//			}
 		}
+
+		//		int count = 0;
+		//		int countt = 0;
+		//		for (int i = 0; i < allData.length; i++) {
+		//			if (allData[i] instanceof EmployeeData) {
+		//				//				count++;
+		//				EmployeeData emp = (EmployeeData) allData[i];
+		//
+		//				System.out.println(emp.getMailAddress());
+
+		//			else if (allData[i] instanceof DepartmentData) {
+		//				countt++;
+		//			}
+
 		//		System.out.println("社員のデータ：" + count + "件");
 		//		System.out.println("部署のデータ：" + countt + "件");