p5

//Create a class with at least 2 data members and overload operators << and >>
#include<iostream>
#include<string.h>
using namespace std;
class lk
{
    char s[20],a;
    int l;
    public:
    void get_s()
    {
        cout<<"\n Enter String:";
        cin>>s;
    }
    void operator >>(lk a1)
    {
        cout<<strrev(s);
    }
    void operator <<(lk a1)
    {
        l=strlen(s);

        for(int i=0;i<=l;i++)
        {
            if(i%2==0  && i!=(l-1))
            {
                a=s[i+1];
                s[i+1]=s[i];
                s[i]=a;
                i++;
            }
            else
            {
                s[i]=s[i];
            }
        }
        cout<<s;
    }
};
int main()
{
    lk s,a;
    int ch;
        do
    {

        cout<<"\n\n=====> Menu <===== \n";
        cout<<"\n 1. revers string ";
        cout<<"\n 2. interchange of character ";
        cout<<"\n 3. Exit";
        cout<<"\n\n Enter your choice: ";
        cin>>ch;
        switch(ch)
        {
            case 1:
                cout<<"\n Enter 1st String:";
                s.get_s();
                s>>a;
                break;
            case 2:
                cout<<"\n Enter 1st String:";
                s.get_s();
                s<<a;
            break;
        }
}while(ch<=2 && ch>=1);
return 0;
}