/*

* Sample usage: java Date 12 31 1999

*/

public class Date implements Comparable<Date>{

private final int month;

private final int day;

private final int year;

// Initializes a new date from the month, day, and year.

public Date(int m, int d, int y){

month = m;

day = d;

year = y;

}

// Initializes new date specified as a string in form MM/DD/YYYY.

public Date(String date) {

String[] fields = date.split("/");

if (fields.length != 3) {

throw new IllegalArgumentException("Invalid date");

}

month = Integer.parseInt(fields[0]);

day = Integer.parseInt(fields[1]);

year = Integer.parseInt(fields[2]);

}

// Return the month.

public int month(){

return month;

}

// Return the day.

public int day(){

return day;

}

// Return the year.

public int year(){

return year;

}

@Override

public int compareTo(Date that) {

if (this.year > that.year) return 1;

if (this.year < that.year) return -1;

if (this.month > that.month) return 1;

if (this.month < that.month) return -1;

if (this.day > that.day) return 1;

if (this.day < that.day) return -1;

return 0;

}

// Returns a string representation of this date.

public String toString(){

return month+"/"+day+"/"+year;

}

// Compares this date to the specified date.

public boolean equals(Object other){

if (other == this) return true;

if (other == null) return false;

if (other.getClass() != this.getClass()) return false;

Date that = (Date) other;

return (this.month == that.month)&&(this.day == that.day)&&(this.year == that.year);

}

// Test client code

public static void main(String[] args){

int m = Integer.parseInt(args[0]);

int d = Integer.parseInt(args[1]);

int y = Integer.parseInt(args[2]);

Date date = new Date(m, d, y);

StdOut.println(date);

}

}