Membuat Menu Menggunakan Switch dalam JAVA

import java.util.Scanner;

public class MenuWhile{
    public static void main(String []args){
   
Scanner input=new Scanner(System.in);

int pilih,a,b;

System.out.println();
System.out.println("MENU Pilihan");
System.out.println("|================== |");
System.out.println("|1. Balon       |");
System.out.println("|2. Bilangan genap |");
System.out.println("|3. Exit     |");
System.out.println("|================== |");
System.out.print("Masukkan pilihan : ");
pilih = input.nextInt();
System.out.println();

switch(pilih){
case 1:
System.out.println( "Jumlah balon" );
System.out.print("Masukkan jumlah balon : ");
a = input.nextInt();
for (int i=0; i <=a; i=i+1) {
System.out.println("Balon meledak "+i+" sisa " +(a-i)); }
break;
case 2:
System.out.println( "Bilangan genap" );
System.out.print("Masukkan batas bilangannya : ");
a = input.nextInt();
System.out.println ("Bilangan genap dari 0 sampai bil tsb : ");
for (int i=2; i <=a; i=i+2) {
System.out.print(i + "   "); }
break;
case 3:
System.exit(0);
default:
System.out.println("Pilihan menu tidak tersedia.");

}
}
}