mydate.java

java程序设计源代码

public class MyDate {
    private int day = 12;
    private int month = 6;
    private int year = 1900;
    public MyDate(int y, int m, int d) {
		year = y;
		month = m;
		day = d;
	}     
	void addYear()
	{
		year ++;
	}
	public void display() {
		System.out.println(year + "-" + month + "-" +day);  
	}
	public static void main(String[] args) {
		MyDate  m, n;
		m = new MyDate(22, 9, 2003);
		n = m;
		n.addYear();
		m.display();
		n.display();
    }    
}