在JAVA中如何跳出当前的多重嵌套循环

public static void main(String[] args) {
        System.out.println("标记前");
        ok: for (int i = 0; i < 10; i++) {
            for (int j = 0; j < 10; j++) {
                System.out.println("i=" + i + ",j=" + j);
                if (j == 5)
                    break ok;
            }
        }
        System.out.println("标记后");
    }

public static void main(String[] args) {
        System.out.println("标记前");
        boolean flag = true;
for (int i = 0; i < 10; i++) {
            for (int j = 0; j < 10 && flag; j++) {
                System.out.println("i=" + i + ",j=" + j);
                if (j == 5)
                    flag = false;
            }
        }
        System.out.println("标记后");
    }