p4

//4. Create a class String and overload operator +, ==, - operator to perform string
//concatenation and comparison and string reverse.
#include<iostream>
#include<string.h>
using namespace std;
class Str
{
    char s1[20];
    public:

        void get_s()
        {
            cout<<"\n Enter String:";
            cin>>s1;
        }
        void put_s()
        {
            cout<<"String=> "<<s1;
        }
        void operator +(Str a1)
        {
            cout<<s1;
            cout<<a1.s1;

        }
        void operator ==(Str a)
        {
            if((strcmp(s1,a.s1))==0)
            {
                cout<<"\n Both String Are Same";
            }
            else
            {
                cout<<"\n Both String Are Different";
            }
        }
        void operator -()
        {
            cout<<strrev(s1);
        }
};
int main()
{
    Str s,a;
    int ch;
    do
    {
        cout<<"\n =============> Menu <================= \n";
        cout<<"\n 1.Concate two string ";
        cout<<"\n 2.Compare two string";
        cout<<"\n 3.reverse String";
        cout<<"\nEnter Your Choice";
        cin>>ch;
        switch(ch)
        {
            case 1:
                cout<<"\n Enter 1st String:";
                s.get_s();
                cout<<"\n Enter 2nd String:";
                a.get_s();
                s+a;
                break;

            case 2:
                cout<<"\n Enter 1st String:";
                s.get_s();
                cout<<"\n Enter 2nd String:";
                a.get_s();
                s==a;
                break;

            case 3:
                cout<<"\n Enter 1st String:";
                s.get_s();
                -s;
                break;

        }


    }while(ch>=1 && ch<=3);
    return 0;
}