java - do-while 循环似乎不起作用 (Java)

Question

我想我找到了一个解决方案来验证用户提交的字符串是否采用正确的格式，方法是使用一个 do-while 循环，只要 boolean 变量具有 false 值，该循环就会执行，但是，在设置断点之后即使变量仍设置为 false，它也存在循环。这是代码:

do {
    if (isLegit(x)) {
        try {
            dayTime = sdf.parse(x);
        } catch (Exception ex) {
            System.out.println("an exception was caught. oupsie. the day is now set to today.");
        }
        verify = true;
    } else {
        System.out.println("the format was wrong. please try again");
        x = in .nextLine();
        verify = false;
    }
} while (verify = false);

Boolean isLegit(String x) {
    try {
        if (Integer.parseInt(x.substring(0, 2)) > 0 && Integer.parseInt(x.substring(0, 2)) < 13) {
            if (Integer.parseInt(x.substring(3, 5)) > 0 && Integer.parseInt(x.substring(3, 5)) < 32) {
                if (Integer.parseInt(x.substring(6, 10)) > 1969 && Integer.parseInt(x.substring(6, 10)) < 2016) {
                    return true;
                }
            }
        }
    } catch (Exception ex) {
        return false;
    }
    return true;
}

我该怎么办？

Answer 1

问题出在这里:

while(verify=false);

将其更改为:

while(!verify);