C++ switch - case

C++  programlama da Switch-Case yapısı
#include <iostream>

using namespace std;

int main()
{
    int islem;
    float x,y;
    cout<<"1.sayiyi giriniz:";
    cin>>x;
    cout<<"2.sayiyi giriniz:\n";
    cin>>y;

    cout<<"Bir islem seciniz.\n";
    cout<<"1 Toplama \n";
    cout<<"2 Cikarma\n";
    cout<<"3 Carpma\n";
    cout<<"4 Bolme\n";
    cin>>islem;

    switch(islem){
        case 1: cout<<"Sayilarin Toplami:"<<x+y<<endl;
        break;
        case 2: cout<<"Sayilarin Farki:"<<x-y<<endl;
        break;
        case 3: cout<<"Sayilarin Carpimi:"<<x*y<<endl;
        break;
        case 4: cout<<"Sayilarin Bolumu:"<<x/y<<endl;


     }


    return 0;
}