Java标签与循环控制-优快云博客

本文链接：https://blog.youkuaiyun.com/dongqiushan/article/details/103452489

public class LabelTest {
    public static void main(String[] args) {
        testLabel();
    }

    private static void testLabel() {
        System.out.println("testLabel");
        System.out.println("retry:");
        outer:
        for (int i = 0; i < 2; i++) {
                System.out.println("out i: " + i);
                for (int j = 0; j < 4; j++) {
                    if (j == 2) {
                        //此处替换
                        continue outer;
                    }
                    System.out.println("in j: " + j);
                }
            }
        System.out.println("testLabel end!");
    }
}
/**
 * break outer: 内外全部终止
 *
 * testLabel
 * retry:
 * out i: 0
 * in j: 0
 * in j: 1
 * testLabel end!
 */

/**
 * break: 内层终止，外部继续
 *
 * testLabel
 * retry:
 * out i: 0
 * in j: 0
 * in j: 1
 * out i: 1
 * in j: 0
 * in j: 1
 * testLabel end!
 */

/**
 * continue: 内外继续，跳出2
 *
 * testLabel
 * retry:
 * out i: 0
 * in j: 0
 * in j: 1
 * in j: 3
 * out i: 1
 * in j: 0
 * in j: 1
 * in j: 3
 * testLabel end!
 */

/**
 * continue outer: 内层终止，外部继续 同break
 *
 * testLabel
 * retry:
 * out i: 0
 * in j: 0
 * in j: 1
 * out i: 1
 * in j: 0
 * in j: 1
 * testLabel end!
 *

总结下来：