请问java中想连续输入，按‘y’结束，这个循环不对，while循环不会判断，能否帮忙看看，谢谢！

Question

Scanner sc = new Scanner(System.in);
System.out.println("请输入卡号，按“y”结束：");

    int custNo;
    int sum = 0;
    do{
        custNo = sc.nextInt();
        sum = sum + custNo;
    }
    while(custNo == 'y');

Answer 1

由于y是char类型 ,而这里读取的是整形 ,输入y会报错

    Scanner sc = new Scanner(System.in);
        System.out.println("请输入卡号，按“y”结束：");
            String custNo;
            int sum = 0;
            String y="y";
            do{
                custNo = sc.next();
                if(custNo.equals("y"))
                    break;
                sum = sum + Integer.parseInt(custNo);
            }
            while(true);
            System.out.println("sum="+sum);