Skip to content
Related Articles
Open in App
Not now

Related Articles

Java program to check palindrome (using library methods)

Improve Article
Save Article
  • Difficulty Level : Basic
  • Last Updated : 25 Jan, 2023
Improve Article
Save Article

Given a string, write a Java function to check if it is palindrome or not. A string is said to be palindrome if reverse of the string is same as string. For example, “abba” is palindrome, but “abbc” is not palindrome. The problem here is solved using string reverse function. Examples:

Input : malayalam
Output : Yes

Input : GeeksforGeeks
Output : No

Java




// Java program to illustrate checking of a string
// if its palindrome or not using reverse function
import java.io.*;
public class Palindrome
{
public static void checkPalindrome(String s)
{
    // reverse the given String
    String reverse = new StringBuffer(s).reverse().toString();
 
    // check whether the string is palindrome or not
    if (s.equals(reverse))
    System.out.println("Yes");
 
    else
    System.out.println("No");
}
 
public static void main (String[] args)
            throws java.lang.Exception
{
    checkPalindrome("malayalam");
    checkPalindrome("GeeksforGeeks");
}
}

Output

Yes
No

Time complexity: O(N), where N is length of given string.
Auxiliary Space: O(N), The extra space is used to store the reverse of the string.

Related Article : C program to check whether a given string is palindrome or not This article is contributed by Bhargav Sai Gajula. If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org or mail your article to review-team@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

My Personal Notes arrow_drop_up
Related Articles

Start Your Coding Journey Now!