ICSE Java Programming Function Overloading 2023 Q4 SPECIMEN PAPER

ICSE Java Programming  2023 Q3 SPECIMEN PAPER Solved.

Question 4

Define a class to overload the method print as follows:

void print ()-to print the format

1

2 3

4 5 6

7 8 9 10

boolean print (int n) -

to check whether the number is a Dudeney number,a number is dudeney if the cube of the sum of the digits is equal to the number itself.

Eg: 512(5+1+2)3 = (8)3 = 512

void print (int a, char ch) -

if ch = s or S print the square of the number else if

ch=c or C print the cube of the number.

Function Overloading in java example.

import java.util.Scanner;

public class ICSEJava2023 {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

        FunctionOverloading obj = new FunctionOverloading();

        int choice = 0;

        int n;

        char ch;

        System.out.println("Press 1 to print the format:");

        System.out.println("Press 2 to check for Dudeney number:");

        System.out.println("Press 3 to print the square or cube:");

        choice = in.nextInt();

        switch (choice) {

            case 1:

                obj.print();

                break;

            case 2:

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

                n = in.nextInt();

                if (obj.print(n) == true)

                    System.out.println(" It's a Dudeney numer");

                else

                    System.out.println(" It's not a Dudeney numer");

                break;

            case 3:

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

                n = in.nextInt();

                System.out.println("Enter the character (c/C or s/S):");

                ch = in.next().charAt(0);

                System.out.println("Enter the height of the cuboid:");

                obj.print(n, ch);

                break;

            default:

                System.out.println("Wrong Choice!");

                break;

        }

        in.close();

    }

}

class FunctionOverloading {

    public void print() {

        int counter = 1;

        for (int i = 1; i <= 4; i++) {

            for (int j = 1; j <= i; j++) {

                System.out.print((counter++) + " ");

            }

            System.out.println();

        }

    }

    public boolean print(int n) {

        int sum = 0;

        int temp;

        temp = n;

        while (temp > 0) {

            sum += temp % 10;

            temp /= 10;

        }

        if (sum * sum * sum == n)

            return (true);

        else

            return (false);

    }

    public void print(int a, char ch) {

        if (ch == 's' || ch == 'S')

            System.out.println(a * a);

        else if (ch == 'c' || ch == 'C')

            System.out.println(a * a * a);

        else

            System.out.println("Invalid input!");

    }

}