Contoh program switch

Progran switch

Contoh program switch :

#include<iostream.h>

#include<conio.h>

#include<math.h>

void main()

{

int n;

float r;

float L;

float phi=3.14;

float K;

int s,a,t,l,p,x;

      cout<<" **** Program Menghitung Luas Dan Keliling Bangun Datar **** \n";

      cout<<" ---------------------  MAKUL ALPRO  ----------------------- \n";

      cout<<" ----------------------------------------------------------- \n";

cout<<" >>>> Pilih Bangun yang ingin Anda Hitung <<<<\n";

cout<<"  1.Lingkaran\n";

cout<<"  2.Segitiga\n";

cout<<"  3.Persegi\n";

cout<<"  4.Persegi Panjang\n";

cout<<"=======================================\n\n";

cout<<" Pilih yg Mana?\n";

cout<<" =>";cin>>n;

cout<<" \n";

clrscr();

switch (n)

{

case 1:

cout<<" >>>> Lingkaran <<<< \n";

     cout<<"\n";

     cout<<" Silakan pilih lagi\n";

     cout<<"\n";

     cout<<" 1. Luas Lingkaran\n";

     cout<<" 2. Keliling Lingkaran\n";

     cout<<"\n";

     cout<<"Input Pilihan Anda (1/2) : ";

     cin>>n;

     clrscr();

     {

                 if(n==1){

                 cout<<" >> Luas Lingkaran << \n";

                 cout<<" Masukan r = ";

                 cin>>r;

                 L=phi*r*r;

                 cout<<"\n Luas Lingkaran = ";

                 cout<<L;

                 cout<<"\n";}

                 else if(n==2){

                 cout<<" >> Keliling Lingkaran << \n";

                 cout<<"Masukan r =";

                 cin>>r;

                 K=2*phi*r;

                 cout<<"\n Keliling Lingkaran = ";

                 cout<<K;}}

break;

case 2:

     cout<<" >>>> Segitiga <<<<\n";

     cout<<"\n";

     cout<<" Silakan pilih lagi\n";

     cout<<"\n";

     cout<<" 1. Luas Segitiga\n";

     cout<<" 2. Keliling Segitiga\n";

     cout<<"\n";

     cout<<" Input Pilihan Anda (1/2) : ";

     cin>>n;

     clrscr();

     {

                 if(n==1){

                 cout<<" >> Luas Segitiga << \n\n";

                 cout<<" Masukan Alas   = ";

                 cin>>a;

                 cout<<" Masukan Tinggi = ";

                 cin>>t;

                 cout<<"\n";

                 L=0.5*a*t;

                 cout<<"\n Luas Segitiga = ";

                 cout<<L;

                 cout<<"\n";}

                 else if(n==2){

                 cout<<" >>>> Keliling Segitiga <<<< \n";

                 cout<<" Masukan Alas   = ";

                 cin>>a;

                 cout<<" Masukan Tinggi = ";

                 cin>>t;

                 x=sqrt(a*a+t*t);

                 K=a+t+x;

                 cout<<"\n Keliling Segitiga = ";

                 cout<<K;}}

break;

case 3:

     cout<<" >>>> Persegi <<<< \n";

     cout<<"\n";

     cout<<" Silakan pilih lagi\n";

     cout<<"\n";

     cout<<" 1. Luas Persegi\n";

     cout<<" 2. Keliling Persegi\n";

     cout<<"\n";

     cout<<" Input Pilihan Anda (1/2) : ";

     cin>>n;

     clrscr();

     {

                 if(n==1){

                 cout<<" >> Luas Persegi << \n";

                 cout<<" Masukan s =";

                 cin>>s;

                 L=s*s;

                 cout<<"\n Luas Persegi = ";

                 cout<<L;}

                 else if(n==2){

                 cout<<" >> Keliling Persegi << \n";

                 cout<<" Masukan s =";

                 cin>>s;

                 K=4*s;

                 cout<<"\n";

                 cout<<" \nKeliling Persegi = ";

                 cout<<K;}}

break;

case 4:

     cout<<" >>>> Persegi Panjang <<<< \n";

     cout<<"\n";

     cout<<" Silakan pilih lagi\n";

     cout<<"\n";

     cout<<" 1. Luas Persegi Panjang\n";

     cout<<" 2. Keliling Persegi Panjang\n";

     cout<<"\n";

     cout<<" Input Pilihan Anda (1/2) : ";

     cin>>n;

     clrscr();

     {

                 if(n==1){

                 cout<<" >> Persegi Panjang << \n";

                 cout<<" Masukan p = ";

                 cin>>p;

                 cout<<" Masukan l  = ";

                 cin>>l;

                 cout<<"\n";

                 L=p*l;

                 cout<<" \nLuas Persegi Panjang = ";

                 cout<<L;

                 cout<<"\n";}

                 else if(n==2){

                 cout<<" >> Keliling Persegi Panjang << \n";

                 cout<<" Masukan p =";

                 cin>>p;

                 cout<<" Masukan l =";

                 cin>>l;

                 K=2*(p+l);

                 cout<<" \nKeliling Persegi Panjang = ";

                 cout<<K;}}

break;

}

getch();

}