mydate.java

东软JAVA内部资料

package org.course.io.serialization;

import java.io.Serializable;

public class MyDate implements Serializable{
	private int year;
	private int month;
	private int day;
	
	public MyDate(int year, int month, int day) {
		setYear(year);
		setMonth(month);
		setDay(day);
	}
	
	public String toString() {
		String date ="" + year + "-" + month + "-" + day;
		return date;
	}
	
	public boolean equals(Object o) {
		boolean equal = false;
		if (o instanceof MyDate) {
			MyDate date = (MyDate) o;
			if (year == date.getYear() 
					&& month == date.getMonth() 
					&& day == date.getDay()) {
				equal = true;
			}
		}
		return equal;
	}
	
	public int hashCode() {
		int code = 17;
		code = 37 * code + year;
		code = 37 * code + month;
		code = 37 * code + day;
		return code;
	}
	
	public int getDay() {
		return day;
	}
	public void setDay(int day) {
		if (day < 1 || day > 31) {
			System.out.println("Error Day");
		} else {
			this.day = day;
		}		
	}
	public int getMonth() {
		return month;
	}
	public void setMonth(int month) {
		if (month < 1 || month > 12) {
			System.out.println("Error month");
		} else {
			this.month = month;
		}	
	}
	public int getYear() {
		return year;
	}
	public void setYear(int year) {
		this.year = year;
	}
}