使用标签并在if-else语句中插入 [英] Using label and break in if-else statement

问题描述

我有这段代码，可以在特定条件下（当x和y都等于零时）从数组生成随机数。我希望控件跳转到标签。但是控件在任何情况下都不会跳转到标签。我想知道我是否做对了？

I have this code which generates random number from an array, at a particular condition (when x and y both are equal to zero). I want the control to jump to the label. But the control never jumps to the label in any condition. I wanted to know that whether I am doing it right or not?

int[] arr = {0, 1, 2};    
Random rn = new Random();
label: {
    //some code
    if (x != 0 && y !=0) {
        //some code
    } else {
        break label;
    }
}

推荐答案

尝试避免使用标签。您在那里可以做的是：

Try to Avoid using labels. What you could do there, is:

while(true) {
    if(x == 0 && y == 0) {
        break;
    }
    // some stuff with x and y
}

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