Jumlah_hari.java

// Samuel Alferdo Astrada Napitupulu
// FUTURE3
public class Jumlah_hari{
	public static void main(String[] args){
		if(args.length != 2){
			System.out.println("Usage: java Jumlah hari <bulan> <tahun>");
		}
		
		int bulan = Integer.parseInt(args[0]);
		int tahun = Integer.parseInt(args[1]);
		
		switch(bulan){
			case 1: System.out.println("31");
			break;
			case 2: if(((tahun%4==0) && (tahun%100!=0)) || (tahun%400==0)){
				System.out.println("29");
			}else{
				System.out.println("28");
			}
			break;
			case 3: System.out.println("31");
			break;
			case 4: System.out.println("30");
			break;
			case 5: System.out.println("31");
			break;
			case 6: System.out.println("30");
			break;
			case 7: System.out.println("31");
			break;
			case 8: System.out.println("31");
			break;
			case 9: System.out.println("30");
			break;
			case 10: System.out.println("31");
			break;
			case 11: System.out.println("30");
			break;
			case 12: System.out.println("31");
			break;
			default: System.out.println("-");
			break;
		}
	}
}