Memindahkan nilai A ke B dan nilai B ke A [Program class c++]

#include
#include
class menukar {

public:
void swap ();

private:
int a,b;
};

void menukar::swap(){
cout<<"masukkan a :"; cin>>a;
cout<<"masukkan b :"; cin>>b;
cout<<"a="<<<",b="<<
cout<<"b="<<<",a="<<
}
int main(){
menukar angka;
angka.swap();
getch();
return 0;
}