我是Java的初学者
这是我的代码
while (true) {
System.out.println("Choose the number");
System.out.println("1");
System.out.println("2");
System.out.println("3");
System.out.println("4 for Display summary and Exit");
int cho = input.nextInt();
System.out.println("Registration");
System.out.println("Enter your full name (first and lastname)");
String name = input.next();
System.out.println("Enter your National ID");
int id = input.nextInt();
System.out.println("Enter your phone number");
int phone = input.nextInt();
我对所有选项1,2,3,4作了if陈述
这是第4个if语句
else if (cho == 4) {
System.out.println("Summary");
}
我想在此循环中,如果主菜单中的用户选择4打印所有选择了1,2,3的注册用户(姓名,电话,ID)的摘要,即使该用户进行了多个注册,然后退出程序。
答案 0 :(得分:1)
您应使用Person
之类的类来在每个循环中存储每个人,例如
class Person{
String name;
int id, phone;
// Constructor with the 3 attributes
// toString() method implemented
}
在使用时要求4
打印所有列表
List<Person> peoples = new ArrayList<>()
while (true) {
System.out.println("Choose the number\n1\n2\n3\n4 for Display summary and Exit");
int cho = input.nextInt();
System.out.println("Registration");
System.out.println("Enter your full name (first and lastname)");
String name = input.next();
System.out.println("Enter your National ID");
int id = input.nextInt();
System.out.println("Enter your phone number");
int phone = input.nextInt();
Person p = new Person(name, id, phone);
peoples.add(p)
//...
if( cho == 4){
peoples.forEach(System.out::println);
break;
}
}