Program menu pada c++

• ·         Input

#include<iostream>

#include<math.h>

#include<conio.h>

#include<string>

using namespace std;

int main()

{

int pil;

char ulang;

awal:

cout<<"\n...:::: MENU LUAS BANGUN DATAR ::::..."<<endl;

cout<<"========================================"<<endl;

cout<<"|1. Luas Segitiga                      |"<<endl;

cout<<"|2. Luas Persegi Panjang               |"<<endl;

cout<<"|3. Luas Lingkaran                     |"<<endl;

cout<<"|4. Nama Kelompok                      |"<<endl;

cout<<"|5. Exit                               |"<<endl;

cout<<"========================================"<<endl;

cout<<"Masukkan Pilihan Anda [1..5] : ";cin>>pil;

cout<<"\n";

system ("cls");

switch(pil)

{

case 1 :

{

float a,t,L;

cout << "****** Luas Segitiga ******" << endl;

cout << "\nAlas      : ";

cin >> a;

cout << "\nTinggi    : ";

cin >> t;

L=(a*t)/2;

cout << "Luas        : " << L;

}

goto tengah;

case 2 :

{

int p,l;

float L;

cout << "\n" ;

cout << " " << "-----------------------------------" << endl;

cout << " " << " Menghitung Luas Persegi Panjang " << " " << endl;

cout << " " << "-----------------------------------";

cout << "\nPanjang    : ";

cin >> p;

cout << "\nLebar      : ";

cin >> l;

L = p*l;

cout << "\nLuas       : " << L;

}

goto tengah;

case 3 :

{

float r, L;

float phi = 3.14;

cout << " " << " Menghitung Luas Lingkaran " << endl;

cout << " \nJari-jari : ";

cin >> r;

L = phi*r*r;

cout << "Luas      : " << L;

}

goto tengah;

case 4 :

{

cout << ">>>>>>>>>>> NAma Kelompok >>>>>>>>>>>" << endl;

cout << "\n~ Asriel Albert Pangloli   : 11110182 ";

cout << "\n~ Lira Elvani              : 14110044 ";

cout << "\n~ Deni Robi Hartarto       : 11110789 ";

cout << "\n~ Indra Kurniawan Effendi  : 13110520 ";

cout << "\n~ Reza Maulana             : 15110806 ";

cout << "\n~ Wira Andhika Wasisto     : 18110543 " << endl;

cout << "\n>>>>>>>>>>> Kelas : 2ka17 >>>>>>>>>>>";

}

goto tengah;

case 5 : goto akhir;

default : cout<<"Maaf Input yang Anda Masukkan Salah !";

tengah:

cout<<"\n";

cout<<"\nKembali ke Menu [Y/N] ? : ";cin>>ulang;

while(ulang=='Y'||ulang=='y')

goto awal;

goto akhir;

}

getch();

akhir:

return 0;

}