Check Palindrome String

Check whether a string is a palindrome.

BeginnerTopic: Module 4: String Programs
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Java Check Palindrome String Program

This program helps you to learn the fundamental structure and syntax of Java programming.

Try This Code
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String s = sc.nextLine();

        String clean = s.replaceAll("\\s+", "").toLowerCase();
        String rev = new StringBuilder(clean).reverse().toString();

        if (clean.equals(rev)) {
            System.out.println("Palindrome");
        } else {
            System.out.println("Not Palindrome");
        }
        sc.close();
    }
}
Output
Enter a string: Madam
Palindrome

Understanding Check Palindrome String

We normalize case and remove spaces, then compare the string to its reverse.

Note: To write and run Java programs, you need to set up the local environment on your computer. Refer to the complete article Setting up Java Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your Java programs.

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Reverse String
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Count Vowels

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