Program to check if two strings are same or not

Difficulty Level : Basic
Last Updated : 07 Aug, 2019

Given two strings, the task is to check if these two strings are identical(same) or not.

Examples:

Input: string1 = “GeeksforGeeks”, string2 = “GeeksforGeeks”
Output: Yes

Input: string1 = “Geeks for Geeks”, string2 = “Geeks for Geeks”
Output: Yes

Input: string1 = “GeeksforGeeks”, string2 = “Geeks”
Output: No

Input: string1 = “Geeks for Geeks”, string2 = “Geeks for geeks”
Output: No

Approach: This can be done with the help of strcmp() method in C. Please note, this method is case-sensitive.

Implementation:

C++

// C++ program to check if 
// two strings are identical 
#include <bits/stdc++.h> 
using namespace std; 
  
int main() 
{ 
  
    char string1[100], string2[100]; 
  
    // Get the strings which 
    // is to be checked 
    cin >> string1; 
    cout << "Enter the first string: " << string1; 
  
    // Get the strings which 
    // is to be checked 
    cin >> string2; 
    cout << "\nEnter the second string: " << string2; 
  
    // Check if both strings are equal 
    cout << "\nAre both strings same: "; 
  
    if (strcmp(string1, string2) == 0) 
    { 
        cout << "Yes"; 
    } 
    else { 
        cout << "No"; 
    } 
  
    return 0; 
} 
  
// This code is contributed by Akanksha Rai 

C

// C program to check if 
// two strings are identical 
  
#include <stdio.h> 
#include <string.h> 
  
int main() 
{ 
  
    char string1[100], string2[100]; 
  
    // Get the strings which 
    // is to be checked 
    scanf("%[^\n]\ns", string1); 
    printf("Enter the first string: %s", string1); 
  
    // Get the strings which 
    // is to be checked 
    scanf("%[^\n]\ns", string2); 
    printf("\nEnter the second string: %s", string2); 
  
    // Check if both strings are equal 
    printf("\nAre both strings same: "); 
  
    if (strcmp(string1, string2) == 0) { 
        printf("Yes"); 
    } 
    else { 
        printf("No"); 
    } 
  
    return 0; 
} 

Java

// Java program to check if 
// two strings are identical 
import java.util.*; 
  
class GFG { 
  
    // Driver code 
    public static void main(String[] args) 
    { 
        Scanner in = new Scanner(System.in); 
  
        // Get the strings which is to be checked 
        String string1 = in.nextLine(); 
        System.out.println("Enter the first string: "
                           + string1); 
  
        // Get the strings which is to be checked 
        String string2 = in.nextLine(); 
        System.out.println("Enter the second string :"
                           + string2); 
  
        // Check if both strings are equal 
        System.out.println("\nAre both strings same: "); 
  
        if (string1.equals(string2) == true) { 
            System.out.println("Yes"); 
        } 
        else { 
            System.out.println("No"); 
        } 
    } 
} 
  
// This code is contributed by aishwarya.27 

Python 3

# Python program to check if  
# two strings are identical  
  
if __name__ == "__main__" :  
      
    # Get the strings which  
    # is to be checked  
    string1 = input("Enter the first string: ") 
    print(string1, end = "\n") 
      
    # Get the strings which  
    # is to be checked  
    string2 = input("Enter the second string: ") 
    print(string2, end ="\n") 
      
    # Check if both strings are equal  
    print("Are both strings same: ", end = " ")  
  
    if (string1 == string2) :  
        print("Yes") 
          
    else :  
        print("No")  
  
# This code is contributed by Ryuga 

C#

// C# program to check if 
// two strings are identical 
using System; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Get the strings which is to be checked 
        String string1 = Console.ReadLine(); 
        Console.WriteLine("Enter the first string: "
                          + string1); 
  
        // Get the strings which is to be checked 
        String string2 = Console.ReadLine(); 
        Console.WriteLine("Enter the second string :"
                          + string2); 
  
        // Check if both strings are equal 
        Console.WriteLine("\nAre both strings same: "); 
  
        if (string1.Equals(string2) == true) { 
            Console.WriteLine("Yes"); 
        } 
        else { 
            Console.WriteLine("No"); 
        } 
    } 
} 
  
/* This code contributed by PrinciRaj1992 */

PHP

<?php 
// PHP program to check if  
// two strings are identical 
  
  
// Get the strings which 
// is to be checked 
$string1 = readline(); 
echo "Enter the first string: $string1"; 
  
// Get the strings which 
// is to be checked 
$string2 = readline(); 
echo "\nEnter the second string: $string2"; 
  
// Check if both strings are equal 
echo "\nAre both strings same: "; 
  
if (strcmp($string1, $string2) == 0)  
{ 
    echo "Yes"; 
} 
  
else if (strcmp($string1, $string2) > 0) //Because string1 has some character greater than string2 
{ 
    echo "No"; 
} 
  
else if (strcmp($string1, $string2) < 0) //Because string2 has some character greater than string1 
{ 
    echo "No"; 
} 
  
// This code is contributed by Ashutosh Tiwari 
  
?> 

Output:

Enter the first string: GeeksForGeeks
Enter the second string: GeeksForGeeks
Are both strings same: Yes

Attention reader! Don’t stop learning now. Get hold of all the important C++ Foundation and STL concepts with the C++ Foundation and STL courses at a student-friendly price and become industry ready.

My Personal Notes

Related Articles

C++

C

Java

Python 3

C#

PHP