C++ strings

In this article, we will learn about c++ strings.

In C++, the string is an object of std::string class that represents a sequence of characters. We can perform many operations on strings such as concatenation, comparison, conversion, etc.

C++ String Example

Let’s see the simple example of C++ string.

#include <iostream>  
using namespace std;  
int main( ) {  
    string s1 = "Hello";    
        char ch[] = { 'C', '+', '+'};    
        string s2 = string(ch);    
        cout<<s1<<endl;    
        cout<<s2<<endl;    
}  

Output:

Hello
C++

C++ String Compare Example

Let’s see the simple example of string comparison using strcmp() function.

#include <iostream>  
#include <cstring>  
using namespace std;  
int main ()  
{  
  char key[] = "mango";  
  char buffer[50];  
  do {  
     cout<<"What is my favourite fruit? ";  
     cin>>buffer;  
  } while (strcmp (key,buffer) != 0);  
 cout<<"Answer is correct!!"<<endl;  
  return 0;  
}  

Output:

What is my favourite fruit? apple
What is my favourite fruit? banana
What is my favourite fruit? mango
Answer is correct!!