data1.java

半年的java基础联系源码！现在看了破！对于初学java的朋友能帮上忙就用吧

import java.util.Date;
import java.lang.*;
public class Data1
{
	int year;
	int month;
	int day;
	Date data2=new Date();
	Data1()
	{
		day=data2.getDay();
		month=data2.getMonth();
		year=data2.getYear()+1900;
		//this.year=year;
		//this.month=month;
		//this.day=day;
	}
	public void display()
	{
		System.out.println(year+"\\"+month+"\\"+day);
	}
	public void addDay()
	{
		day=day+1;
		if(day>30)
		{
			if(month>=12)
			{
				year++;
				month=1;
			}
			else
			{
				month++;
			}
		        day=1;
		}	
	}
	public void newData(int year,int month,int day)
	{
		this.year=year;
		this.month=month;
		this.day=day;
	}
	public static void main(String[] args)
	{
		Data1 data1= new Data1();
		data1.display();
		data1.addDay();
		data1.display();
		data1.newData(2006,4,5);
		data1.display();
	}
}