JAVA编程作业题求教！

Question

以下是我的JAVA课程作业，希望能够得到源代码的参考
。
一节课的长度为2小时30分钟，课间休息时间为10分钟，现在要求用户输入时间以后，求出下课的时间以及课间休息开始和结束的试看。

以下是用户界面的输出结果。
When does this lecture start (please indicate hours and minutes)? Hour: 14
Minute: 55
This lecture will end at
Hour: 17
Minute: 25
The mid-lecture break start time is
Hour: 16
Minute: 5
The mid-lecture break end time is
Hour: 16
Minute: 15

以下是我的源代码
package jave.util;

import java.util.Scanner;

public class Assignment1 {

public static void main(String[] args) {
Scanner M= new Scanner(System.in);
Scanner H= new Scanner(System.in);
int numberofmin=M.nextInt();
int numberofh=H.nextInt();
final int classlength=150;
final int breaklength=30;
int numberofhourover = (numberofh*60+numberofmin+classlength)/60;
int numberofminover = (numberofh*60+numberofmin+classlength)%60;
int numberofhourbreakstart = (numberofh*60+numberofmin+classlength/2)/60;
int numberofminbreakstart = (numberofh*60+numberofmin+classlength/2)%60;
int numberofhourbreakover = (numberofh*60+numberofmin+classlength/2)/60;
int numberofminbreakover = (numberofh*60+numberofmin+classlength/2)%60;
System.out.println("The lecture will end at");
System.out.println("HOUR:"+numberofhourover);
System.out.println("MIN:"+numberofminover);
// TODO Auto-generated method stub

}

}

输出的结果是错的，是什么回事呢？

Answer 1

import java.util.*;
import java.text.SimpleDateFormat;

public class TestRest{
public static void main(String args[])throws Exception{
//输入格式18:00
Scanner sc=new Scanner(System.in);
String time=sc.nextLine()+":00";
SimpleDateFormat format = new SimpleDateFormat("hh:mm:ss");
Long l=format.parse(time).getTime();
//加上70分钟
l=l+70*60*1000L;
Date date=new Date();
date.setTime(l);
System.out.println("Begin Time :"+time);
System.out.println("Rest Time :"+date.getHours()+":"+date.getMinutes()+":"+date.getSeconds());
//剩下按照上面的+10分钟
//再加70分钟
}
}