java - 在用户输入 2012 之前如何循环此语句？

Question

import java.util.Scanner;
public class whileLoopOlympics
{
public static void main (String[] args)
{
    System.out.println ("Which year was the most recent London Olympics?");
    Scanner scanner = new Scanner(System.in);        
    String yearAsString = scanner.nextLine();
    int year = Integer.parseInt(yearAsString);


    while (year!=2012)
    {
        System.out.println ("Which year was the most recent London Olympics?");
        Scanner next = new Scanner(System.in);
        String yearAsString2 = scanner.nextLine();
        int year1 = Integer.parseInt(yearAsString2);

}
}
}

我试图循环直到用户输入 2012 但是我不知道如何做 while (year!= 2012 && year1!=2012) 我只是不明白如何做“年”不在 while 循环中

Answer 1

你不需要创建新的扫描器和新的变量，你可以重复使用。

import java.util.Scanner;
public class whileLoopOlympics
{
public static void main (String[] args)
{
    Scanner scanner = new Scanner(System.in);    
    int year = 0;


    while (year!=2012)
    {
        System.out.println ("Which year was the most recent London Olympics?");
        String yearAsString = scanner.nextLine();
        year = Integer.parseInt(yearAsString);
    }
}
}