定义一个时钟类-clock，包括三个int型的成员变量，分别表示时，分，秒，写两个构造方法，

定义一个时钟类-clock，包括三个int型的成员变量，分别表示时，分，秒，写两个构造方法，一个带参数，一个不带参数，有一个成员方法-show()，用于显示当前的时间

/*当前时间*/
window.setInterval('showTime()',1000);
function showTime(){
var enabled = 0;
today = new Date();
var day;
var date;
if(today.getDay()==0) day = "星期日"
if(today.getDay()==1) day = "星期一"
if(today.getDay()==2) day = "星期二"
if(today.getDay()==3) day = "星期三"
if(today.getDay()==4) day = "星期四"
if(today.getDay()==5) day = "星期五"
if(today.getDay()==6) day = "星期六"
date = (1900+today.getYear()) + "-" + (today.getMonth() + 1 ) + "-" + today.getDate() + " " +
" " +today.getHours()+":"+today.getMinutes()+":"+today.getSeconds()+" "+day;
document.getElementById("time").innerHTML=date;
}

这是一个js文件，需要引入

package com.cbg;

public class clock {

private int hour;

private int min;

private int second;



public int getHour() {
    return hour;
}

public void setHour(int hour) {
    this.hour = hour;
}

public int getMin() {
    return min;
}

public void setMin(int min) {
    this.min = min;
}

public int getSecond() {
    return second;
}

public void setSecond(int second) {
    this.second = second;
}

public clock(){

}

public clock(int hour, int min, int second) {
    super();
    this.hour = hour;
    this.min = min;
    this.second = second;
}

public void show(){
    System.out.println("当前时间："+hour+"时"+min+"分"+second+"秒");
}

}
望采纳。。