段階８完了しました。

em-oop/src/EmployeeData.java

@@ -72,6 +72,11 @@ public class EmployeeData {
 	public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
 			String idDepartment) {
 		this.setIdEmployee(idEmployee);
+		nmEmployee = nmEmployee.trim();
+		int i =nmEmployee.length();
+		if (i==0) {
+			nmEmployee ="社員名がからのため設定できませんでした";
+		}
 		this.setNmEmployee(nmEmployee);
 		this.setKnEmployee(knEmployee);
 		this.setMailAddress(mailAddress);

em-oop/src/Main.java

@@ -4,7 +4,7 @@ public class Main {
 	public static void main(String[] args) {
 		EmployeeData[] employee = new EmployeeData[5];
 		
-		employee[0] = new EmployeeData("10000","山田龍也","ヤマダタツヤ","yamada@hoge.jp","aaa","10");
+		employee[0] = new EmployeeData("10000","","ヤマダタツヤ","yamada@hoge.jp","aaa","10");
 		employee[1] = new EmployeeData("10001","高橋準","タカハシジュン","jtaka@hoge.jp","bbb","11");
 		employee[2] = new EmployeeData("10002","麻枝史明","マエダフミアキ","fmak@hoge.jp","ccc","12");
 		employee[3] = new EmployeeData("10003","丸戸章介","マルトショウスケ","marusyo@hoge.jp","ddd","13");