构造日期类提供int compare(MyDate d)测试当前对象和参数对象，

[java]代码库

import java.util.Scanner;
public class Main{
	public static void main(String[] args) {
         Scanner scan = new Scanner(System.in);
         int year1 = scan.nextInt();
         int month1 = scan.nextInt();
         int day1 = scan.nextInt();
         MyDate date1 = new MyDate(year1, month1, day1); 
         int year2 = scan.nextInt();
         int month2 = scan.nextInt();
         int day2 = scan.nextInt();
         MyDate date2 = new MyDate(year2, month2, day2); 
         date1.print();
         System.out.print(date1.compare(date2));
         scan.close(); 
    }
} 

class MyDate {
	private int year;
	private int month;
	private int day;
	public MyDate(int Y, int M, int D) {
		year = Y;
		month = M;
		day = D;
	}
	public int getYear() {
		return year;
	}
	public int getMonth() {
		return month;
	}
	public int getDay() {
		return day;
	}
	int compare(MyDate d) {
		if(this.year < d.getYear())
			return -1;
		else if(this.year > d.getYear())
			return 1;
		else
		{
			if(this.month < d.getMonth())
				return -1;
			else if(this.month > d.getMonth())
				return 1;
			else 			{
				if(this.day < d.getDay())
					return -1;
				else if(this.day > d.getDay())
					return 1;
				else
					return 0;
			}
		}
	}
	void print() {
		System.out.print(month+"/"+day+"/"+year+" ");
	}
}