Java/07-Java-Programs/084-Palindrome-String.java at main · shaikbasha-dev/Java · GitHub

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* ============================================================================

* Program Name : Palindrome String

* File Name : 084-Palindrome-String.java

* Class Name : PalindromeString

* Description:

* This program accepts a String from the user and checks whether

* it is a palindrome by reversing the String and comparing it with

* the original String.

* Objective:

* - Understand how to read a String from the user.

* - Learn how to reverse a String using charAt().

* - Learn how to compare two Strings using equals().

* Author : Shaik Mahaboob Basha

* Repository : 01-Core-Java

* Folder : 08-Java-Programs

* ============================================================================

import java.util.Scanner;

public class PalindromeString {

// The main() method is the entry point of every Java application.

public static void main(String[] args) {

// Create a Scanner object to read input from the keyboard.

Scanner scanner = new Scanner(System.in);

// Ask the user to enter a string.

System.out.print("Enter a String: ");

// Read the complete string entered by the user.

String originalString = scanner.nextLine();

// Declare a variable to store the reversed string.

String reversedString = "";

// Traverse the string from the last character to the first.

for (int i = originalString.length() - 1; i >= 0; i--) {

// Append the current character to the reversed string.

reversedString = reversedString + originalString.charAt(i);

}

// Display the original string.

System.out.println("Original String: " + originalString);

// Display the reversed string.

System.out.println("Reversed String: " + reversedString);

// Check whether both strings are equal.

if (originalString.equals(reversedString)) {

// Display the palindrome message.

System.out.println("The Given String is a Palindrome.");

} else {

// Display the non-palindrome message.

System.out.println("The Given String is Not a Palindrome.");

}

// Example Output:

// Enter a String: madam

// Original String: madam

// Reversed String: madam

// The Given String is a Palindrome.

// Close the Scanner object to release system resources.

scanner.close();

}

Java/07-Java-Programs/084-Palindrome-String.java at main · shaikbasha-dev/Java · GitHub

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