该员工不存在

import java.util.Scanner;

public class PunchClock {
public static void main(String[] args) {
String names = "张三，李四，王五，赵六，周七，王哲，白浩，贾蓉，慕容阿三，黄蓉";
while (true) {
Scanner sc = new Scanner(System.in);
System.out.println("输入姓名：");
String targetName = sc.next();
if (names.indexOf(targetName) != -1) {
System.out.println("签到成功！谢谢");
} else {
System.out.println("该员工不存在！");
}
}
}
}