Contoh Program Looping

package lat;

import java.util.Scanner;
public class lat {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
garis();
System.out.println(" MENU PILIHAN ");
garis();
System.out.println("1. MENGHITUNG NILAI RATA-RATA");
System.out.println("2. MENGHITUNG BILANGAN KELIPATAN EMPAT");
System.out.println("");
garis();

System.out.println("Anda pilih nomor : ");
int pil = input.nextInt();
switch(pil){
case 1 :{
System.out.println("menghitung nilai rata-rata");
break;
}
case 2 :{
System.out.println("menghitung bilangan kelipatan empat");
System.out.println("dari=");int nilai_awal=input.nextInt();
System.out.println("sampai=");int nilai_akhir=input.nextInt();

for (int i=nilai_awal; i<=nilai_akhir; i++)
{
if (i%4==0)
{
System.out.println(i);
}
}break;
}
default : System.exit(0);
}
}
static void garis(){
System.out.println("--------------------------------------------------");
}
}