/**
 * String is same as char type array of C language.
 * But there are several build in functions in String 
 * Thus, we can use it more fairly then char array. 
 * Remember, we can't take String input using scanf. 
 * Rather, we need to use "cin".
*/
#include<stdio.h>
#include<string.h>
#include<string>
#include<iostream>
using namespace std;
 
int main()
{
    char st[]="This not a good code";
    string str="Good line";
 
    cout << str << " and ->  " << st <<endl;    //  in printf    str.c_str() 
    puts("Give a line");
    cin >> str;        // no other way to take input
 
    cout << str << endl;
    printf(" The lenght is %d  and first char %c\n", str.length () , str[0] );
    str.insert(0,  st );
    cout << str << endl;
    str.erase();    
return 0;
}