java - 当尝试运行代码时，我得到 "Does Not Have Main Method Error"

Question

我对 Java 很陌生，在我的类(class)中还没有学到很多东西。每次我尝试运行代码时，我都会被告知我没有 main 方法。然而，我认为 公共(public)无效主(字符串[]参数){ 声明了 main 方法，它位于我的代码的底部。任何人都可以帮助修改代码以使其运行吗？

package Java2;
import java.util.Date;

public class tenpoint01 {

public class Time {
    private int hour;
    private int minute;
    private int second;
    public Time() {
    this(System.currentTimeMillis());
}

public Time(long elapsed) {
    Date date = new Date(elapsed);
    this.hour = date.getHours();
    this.minute = date.getMinutes();
    this.second = date.getSeconds();
}

public Time(int hour, int minute, int second) {
    this.hour = hour;
    this.minute = minute;
    this.second = second;
}

private void setTime(long elapsedTime) {
    Date date = new Date(elapsedTime);
    this.hour = date.getHours();
    this.minute = date.getMinutes();
    this.second = date.getSeconds();
}

public int getHour() {
    return hour;
}

public int getMinute() {
    return minute;
}

public int getSecond() {
    return second;
}

@Override
public String toString() {
    return hour + ":" + minute + ":" + second;
}
/**
* @param args the command line arguments
*/
public void main(String[] args) {
    Time time = new Time();
    Time time2 = new Time(555550000);
    System.out.println(time);
    System.out.println(time2);
}
}
}

Answer 1

改变

public void main(String[] args) {

至

public static void main(String[] args) {

结果

package java2;

import java.util.Date;

public class tenpoint01 {

    public class Time {
        private int hour;
        private int minute;
        private int second;

        public Time() {
            this(System.currentTimeMillis());
        }

        public Time(long elapsed) {
            Date date = new Date(elapsed);
            this.hour = date.getHours();
            this.minute = date.getMinutes();
            this.second = date.getSeconds();
        }

        public Time(int hour, int minute, int second) {
            this.hour = hour;
            this.minute = minute;
            this.second = second;
        }

        private void setTime(long elapsedTime) {
            Date date = new Date(elapsedTime);
            this.hour = date.getHours();
            this.minute = date.getMinutes();
            this.second = date.getSeconds();
        }

        public int getHour() {
            return hour;
        }

        public int getMinute() {
            return minute;
        }

        public int getSecond() {
            return second;
        }

        @Override
        public String toString() {
            return hour + ":" + minute + ":" + second;
        }

        /**
         * @param args the command line arguments
         */
        public void main(String[] args) {
            Time time = new Time();
            Time time2 = new Time(555550000);
            System.out.println(time);
            System.out.println(time2);
        }
    }
}

运行上面的结果

16
4
4
4
4
0

正在打印

这应该可以