Java Calendar类

package com.calendar;

import java.util.Calendar;
import java.util.Date;


public class CalTest {


public static void main(String[] args) {
System.out.println(getMorningTime());
System.out.println(getWorkTime());

Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH,1);
//int day = c.get(Calendar.DAY_OF_MONTH);
System.out.println(c.getTime());
//System.out.println(day);
}

private static Date getMorningTime() {
Calendar c = Calendar.getInstance();
c.setTime(new Date());
c.set(Calendar.HOUR_OF_DAY, 10);
c.add(Calendar.DAY_OF_MONTH, 1);
c.set(Calendar.MINUTE, 0);
return c.getTime();
}

private static Date getWorkTime() {
Calendar c = Calendar.getInstance();
c.setTime(new Date());
c.set(Calendar.HOUR_OF_DAY, 10);
c.set(Calendar.MINUTE, 12);
return c.getTime();
}
}