是/否使用布尔值或if/else？

Question

我在程序中创建是/否输入时遇到问题.我希望用户能够在最后一个print语句后输入ay/n,但我不确定如何实现它.我知道它很可能包括布尔值或if/else语句,但我不太确定.有帮助吗？

import java.util.*;
import java.io.*; 
import java.util.Scanner;

public class Person 
{
public static void main(String[]args) 
{

    int age;
    String name;

    Scanner scan = new Scanner(System.in);

    System.out.println("Enter in your age.");
    age = scan.nextInt();

        if (age >= 10 && age < 18) 
        {
            System.out.println("So you're a kid, huh?");
        } 

        else if (age < 10)
        {
            System.out.println("Nice try.");
            System.exit(0);
        }
        else if (age >= 18 && age <= 100)
        {
            System.out.println("So you're an adult, huh?");
        }
        else if (age > 100)
        {
            System.out.println("Nice try.");
            System.exit(0);
        }

        Scanner in = new Scanner(System.in);
        System.out.println("Enter in your name");
        name = in.nextLine();

        System.out.println("So you're " + age + " years old and your name is " + name + "?");

        System.out.println("y/n");
        }
}

Answer 1

String answer;
boolean yn;

System.out.println("y/n");
while (true) {
  answer = in.nextLine().trim().toLowerCase();
  if (answer.equals("y")) {
    yn = true;
    break;
  } else if (answer.equals("n")) {
    yn = false;
    break;
  } else {
     System.out.println("Sorry, I didn't catch that. Please answer y/n");
  }
}