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A class Encode has been defined to replace only the vowels in a word by the next corresponding…

Computer Science202410 marksProgram
A class Encode has been defined to replace only the vowels in a word by the next corresponding vowel and form a new word. i.e. A → E, E → I, I → O, O → U, U → A and a → e, e → i, i → o, o → u, and u → a Example: Input: Institution Output: Onstotatoun Some of the members of the class are given below: Class name : Encode Data members/instance variables: word : to store a word length : integer to store the length of the word new_word : to store the encoded word Methods / Member functions: Encode( ) : default constructor to initialize data members with legal initial values void acceptWord( ) : to accept a word void nextVowel( ) : to replace only the vowels from the word stored in ‘word’ by the next corresponding vowel and to assign it to ‘newword’, with the remaining alphabets unchanged void display( ) : to display the original word along with the encrypted word Specify the class Encode giving details of the constructor( ), void acceptWord( ), void nextVowel( ) and void display( ). Define a main ( ) function to create an object and call the functions accordingly to enable the task.

Answer

Answer

AI
import java.util.Scanner;

class Encode
{
    String word, new_word;
    int length;

    Encode()
    {
        word = "";
        new_word = "";
        length = 0;
    }

    void acceptWord()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a word: ");
        word = sc.nextLine();
        length = word.length();
    }

    void nextVowel()
    {
        for (int i = 0; i < length; i++)
        {
            char ch = word.charAt(i);
            switch (ch)
            {
                case 'A': new_word += 'E'; break;
                case 'E': new_word += 'I'; break;
                case 'I': new_word += 'O'; break;
                case 'O': new_word += 'U'; break;
                case 'U': new_word += 'A'; break;
                case 'a': new_word += 'e'; break;
                case 'e': new_word += 'i'; break;
                case 'i': new_word += 'o'; break;
                case 'o': new_word += 'u'; break;
                case 'u': new_word += 'a'; break;
                default: new_word += ch;
            }
        }
    }

    void display()
    {
        System.out.println("Original word : " + word);
        System.out.println("Encoded word  : " + new_word);
    }

    public static void main(String args[])
    {
        Encode obj = new Encode();
        obj.acceptWord();
        obj.nextVowel();
        obj.display();
    }
}
Explanation: nextVowel() scans each character of `word`; if it is one of the 10 vowels (upper- or lower-case), it is replaced by the next vowel in the cycle A->E->I->O->U->A (and a->e->i->o->u->a) using a switch statement, while all other (consonant) characters are copied unchanged into `new_word`. Tested (run for real): for word="Institution", the program correctly produced new_word="Onstotatoun", matching the example given in the question.
Objects

From ISC 2024 Specimen Computer Science Paper 1, question 8.