java - while循环的扫描器InputMismatchException问题

    (bank is a static int variable declared up top)
    boolean valid = true;
    Scanner scan = new Scanner(System.in);


    while (valid) {
        try {
        System.out.println("How much money do you want to convert to chips?");
        bank = scan.nextInt();
        valid = false;
        } catch(InputMismatchException ex) {
            System.out.println("Thats not right try entering a number between 0 and 2,147,483,647");
            //bank = scan.nextInt();
            continue;
        }

    }

如果我取消注释第二个银行= scan.nextInt（）;我得到相同的InputMismatchError，但我没有另一个try catch，所以它打印出stacktrace。
如何更改此循环以在最后接受新输入？

最佳答案

试试这个代码：

static int bank = 0;

public static void main(String[] args) {
    boolean valid = true;
    Scanner scan = new Scanner(System.in);

    do {
        System.out.println("How much money do you want to convert to chips?");
        if(scan.hasNextInt()){
            bank = scan.nextInt();
            valid = true;
        }else{
            scan.nextLine();
            valid = false;
            System.out.println("Enter a valid integer value");
        }
    }while(!valid);
}

希望能帮助到你。

关于java - while循环的扫描器InputMismatchException问题，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/32428176/