training-java-future-program/Calendar_2.java at master · YuAndyTX/training-java-future-program · GitHub

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import java.util.*;

public class Calendar_2

{

public static void main(String args[])

{

if (args.length != 2){

System.out.println("Usage Calendar <numeric-year> <numeric-month>");

return;

}

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

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

int day = 0;

boolean leapy = false;

if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)){

leapy = true;

}

switch (month){

case 2:

day = leapy ? 29 : 28; break;

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

day = 31; break;

case 4:

case 6:

case 9:

case 11:

day = 30; break;

default:

System.out.println("Range Month are 1 - 12!");

}

System.out.println("Day = " + day);

}

training-java-future-program/Calendar_2.java at master · YuAndyTX/training-java-future-program · GitHub

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