ICSE Java Programming Vowels in a String 2023 Q7 SPECIMEN PAPER

ICSE Java Programming Vowels in a String 2023 Q7 SPECIMEN PAPER

Question 7

Define a class to accept a string and print the same in reverse, also print the number of vowels in the string.

Eg:S="BEAUTIFUL"

Output - "LUFITUAEB" No. of vowels = 5

JAVA CODE ICSE Java programming Solved

import java.util.Scanner;

public class ICSEJava2023 {

    public static void main(String[] args) {

        StringReverse obj = new StringReverse();

        obj.inputString();

        obj.display();

    }

}

class StringReverse {

    public void inputString() {

        Scanner in = new Scanner(System.in);

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

        this.message = in.nextLine();

        in.close();

    }

    public void display() {

        char[] c = new char[this.message.length()];

        System.out.println("Output");

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

            System.out.print(this.message.charAt(this.message.length() - 1 - i));

            c[i] = this.message.charAt(i);

            if (c[i] >= 'a' || c[i] <= 'z')

                c[i] = (char) (c[i] - 32);

            for (int j = 0; j < 5; j++) {

                if (c[i] == this.vowels[j])

                    this.number_of_vowels++;

            }

        }

        System.out.println();

        System.out.println("No. of vowels:" + this.number_of_vowels);

    }

    StringReverse() {

        this.number_of_vowels = 0;

        this.message = "";

    }

    private int number_of_vowels;

    private String message;

    private static char[] vowels = { 'A', 'E', 'I', 'O', 'U' };

}