ICSE Java Programming palindrome 2022 Q6 SPECIMEN PAPER Solved

ICSE Java Programming Palindrome strings  2022 Q6 SPECIMEN PAPER Solved

Define a class to accept a string, convert it into lowercase and check whether the string is a palindrome or not. A palindrome is a word which reads the same backward as forward.

Example: madam, racecar

import java.util.Scanner;

public class ICSEJava {

    public static void main(String[] args) {

        Palindrome obj = new Palindrome();

        obj.inputString();

        obj.checkPalindrome();

    }

}

class Palindrome {

    public void checkPalindrome() {

        for (int i = 0; i < this.message.length(); i++) {

            if (this.message.charAt(i) != this.message.charAt(this.message.length() - 1 - i)) {

                flag = false;

                break;

            } else

                continue;

        }

        if (flag)

            System.out.println("Entered word is a palindrome:" + this.message);

        else

            System.out.println("Entered word is not a palindrome.");

    }

    public void inputString() {

        Scanner in = new Scanner(System.in);

        System.out.println("Enter the word:");

        this.message = in.nextLine();

        this.message = this.toLowerCase(message);

        in.close();

    }

    private String toLowerCase(String msg) {

        String temp = "";

        for (int i = 0; i < msg.length(); i++) {

            if (msg.charAt(i) >= 'A' && msg.charAt(i) <= 'Z') {

                temp += (char) (msg.charAt(i) + 32);

            } else

                temp += (msg.charAt(i));

        }

        return temp;

    }

    Palindrome() {

        this.message = "";

        this.flag = true;

    }

    private boolean flag;

    private String message;

}