List<Childl> children =new ArrayList<Childl>();
Staff staff =new Staff();
public void open(){
int n = 0;
while(true) {
System.out.print("整数を入力(0:修了,1:IntroductionStaff)>");
try {
n = new Scanner(System.in).nextInt();
} catch(Exception e) {
System.out.println("入力値が間違っています");
continue;
}