电子时钟输出 java 循环 230222

需求

代码

public class Test16 {
    public static void main(String[] args) throws InterruptedException {
        // 电子时钟

        // 小时循环
        for (int hour = 0; hour < 24; hour++) {
            // 分钟循环
            for (int minute = 0; minute < 60; minute++) {
                // 秒钟循环
                for (int second = 0; second < 60; second++) {
                    Thread.sleep(1000);  // alt enter...add exception...
                    // 输出当前的时间
                    // 小时：分钟：秒钟
                    // 小于10的前面加0
                    String newHour = hour < 10 ? "0" + hour : "" + hour;
                    String newMinute = minute < 10 ? "0" + minute : "" + minute;
                    String newSecond = second < 10 ? "0" + second : "" + second;

                    String msg = String.format("%s:%s:%s", newHour, newMinute, newSecond);
                    System.out.println(msg);
                }
            }
        }
    }
}