printdate.java

java课程的资料以及实验的代码

import java.util.Date;
import java.util.Calendar;
import java.text.*;
public class PrintDate {

	/**
	 * @param args
	 */

	Date date=new Date();	
	public void DifferentDays(Date str1,Date str2)
	{
        long day=24*60*60*1000;
		System.out.println((date.getTime()-str1.getTime())/day);
		System.out.println(date.before(str2));
	
	} 
	public void show()
	{
		Calendar calendar=Calendar.getInstance();
		System.out.print("今天是："+calendar.get(Calendar.YEAR)+"年");
		System.out.print(" "+calendar.get(Calendar.MONTH)+"月");
		System.out.print(" "+calendar.get(Calendar.DAY_OF_MONTH)+"日");
		//System.out.print(" 星期"+calendar.get(Calendar.THURSDAY)+"");
		System.out.print("\n现在时刻："+calendar.get(Calendar.HOUR_OF_DAY)+"：");
		System.out.println(""+calendar.get(Calendar.MINUTE)+"");
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		PrintDate pd=new PrintDate();
		Date d1=new Date();
		Date d2=new Date();
	    java.text.SimpleDateFormat sdf=new java.text.SimpleDateFormat("yyyy-MM-dd");
		pd.show();
		try
		{	
			d1=sdf.parse(args[0]);
	    	d2=sdf.parse(args[1]);
	    }
	    catch(ParseException e)
	    {
	    	System.out.println(e.toString());
	    }
	    
	    pd.DifferentDays(d1,d2);

	
		
			
}
}