날짜 비교(생성자)

 

public class Date {

private int year;

private int month;

private int day;

 

public String toString() {

String rslt;

rslt = year + "년" + month + "월" + day + "일";

return rslt;

  }

 

public void setYear(int year) { this.year = year;}

public void setMonth(int month) { this.month = month;}

public void setDate(int day) { this.day = day;}

public int getYear() {return year;}

public int getMonth() {return month;}

public int getDate() {return day;}

 

public Date() {

this(1900, 1, 1);

 }

 

public Date(int year, int month, int day) {

this.year = year;

this.month = month;

this.day = day;

 }

 

public static int compareDate(Date x, Date y) {

if (x.year > y.year)

return -1;

else if (x.year < y.year)

return 1;

 

if (x.month > y.month)

return -1;

else if(x.month < y.month)

return 1;

 

if (x.day > y.day)

return -1;

else if(x.day < y.day)

return 1;

 

return 0;

 }

}

 

 

import java.util.Scanner;

public class Practice_56 {

 

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

 

Date d1 = new Date();

 

System.out.println("첫 번째 날짜를 입력하세요.");

 

System.out.print("년도: ");

d1.setYear(input.nextInt());

System.out.print("월: ");

d1.setMonth(input.nextInt());

System.out.print("일: ");

d1.setDate(input.nextInt());

 

System.out.println("두 번째 날짜를 입력하세요.");

 

System.out.print("년도: ");

int year = input.nextInt();

System.out.print("월: ");

int month = input.nextInt();

System.out.print("일: ");

int day = input.nextInt();

 

Date d2 = new Date(year, month, day);

 

int rslt = Date.compareDate(d1, d2);

if (rslt == 1) {

System.out.println("첫 번째 날짜인 " + d1.toString() + "이 앞선 날짜입니다.");

} else if (rslt == 0) {

System.out.println("두 날짜는 같은 날짜입니다.");

} else if (rslt == -1) {

System.out.println("두 번째 날짜인" + d2.toString() + "이 앞선 날짜입니다.");

}

 

input.close();

 }

}

 

 

결과: