public class kalkulatorCLI {

    public static void main(String args[])
    {
         Scanner input = new Scanner(System.in);
         int bil1, bil2, pil ,hasil = 0;
         System.out.println("PROGRAM JAVA KALKULATOR SEDERHANA");
         System.out.println("1. Persegi");
         System.out.println("2. Segitiga");
         System.out.println("3. Persegi Panjang");
         System.out.println("----------------------------");
         System.out.print("Bilangan 1 : ");
         bil1=input.nextInt();
         System.out.print("Bilangan 2 : ");
         bil2=input.nextInt();
         System.out.print("Pilihan Operasi: ");
         pil=input.nextInt();

         switch (pil){
             case 1 : persegi();break;
             case 2 : segitigas();break;
             case 3 : persegi_panjang();break;
             default : System.out.println("Salah memasukan pilihan");
         }

          System.out.println("Hasil :"+hasil);
    }
}