Check Whether The String Is Palindrome Or Not

Welcome back to my blog! In my previous post, you learnt how to print a pattern in Java using Eclipse.
Today you will learn how to check whether a string from terminal is palindrome or not.

Let's get started!

Step #1. Open Eclipse and choose the directory where you want to save your work.

Step #2. Select File>New>Project as shown in the picture below:

Step #3. Select Java>Java  Project.

Then, click Next.

Step #4. Enter the name of the project in Project name.

Then click on Finish.

Step #5. You will see the name of your project in Package Explorer:

Step #6. You will find a folder named as "src" under the name of your project:

Step #7. Right click on the folder "src">New>Class as demonstrated below:

Step #8. Enter the name of the class as shown below:

Then click on Finish.

Step #9. You will see a screen like this:

Step #10. Write the following code:

import java.util.Scanner;
public class Pal {
          public static void main(String[] args) {
Scanner Scan = new Scanner(System.in);
System.out.println("Enter a string:" );
String Str = Scan.nextLine();
int i = Str.length();
          String Rev = "";
     for(i = i-1; i >= 0; i --)
          {
                    Rev = Rev + Str.charAt(i);
          }
if(Str.equals(Rev))
          {
               System.out.println("The string is palindrome!");
          }
          else
               {
                    System.out.println("The string is not palindrome.");
               }
             }
           }

Step #11. Run the code by clicking on the Run button as shown:

Step #12.  If the entered string is palindrome, like lol, madam, level, rotor, etc., you will see the output as follows:

If the entered string is not palindrome, you will see the output as follows:

Hurrah!!! You have learnt how to make a Java program which checks a string from terminal whether it is palindrome or not.
Feel like a programmer!!!

If you find this post helpful, please share it with your friends, family and colleagues as much as you can.
Thank you for reading!   :)