Design a class DeciHex to accept a positive integer in decimal number system from the user and…

Design a class DeciHex to accept a positive integer in decimal number system from the user and display its hexadecimal equivalent. Example 1: Decimal number = 25 Hexadecimal equivalent = 19 Example 2: Decimal number = 28 Hexadecimal equivalent = 1C Some of the members of the class are given below. Class name : DeciHex Data members/instance variables: num : stores the positive integer hexa : string to store the hexadecimal equivalent of num Methods / Member functions: DeciHex( ) : constructor to initialise the data members with legal initial values void getNum( ) : to accept a positive integer void convert(int n) : to find the hexadecimal equivalent of the formal parameter ‘n’ using the recursive technique void display( ) : to display the decimal number and its hexadecimal equivalent by invoking the function convert( ) Specify the class DeciHex giving details of the constructor( ), void getNum( ), void convert(int) and void display(). Define a main() function to create an object and call all the functions accordingly to enable the task.

import java.util.Scanner;

class DeciHex
{
    int num;
    String hexa;

    DeciHex()
    {
        num = 0;
        hexa = "";
    }

    void getNum()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a positive integer: ");
        num = sc.nextInt();
    }

    void convert(int n)
    {
        if (n == 0)
            return;
        int digit = n % 16;
        char ch;
        if (digit < 10)
            ch = (char) ('0' + digit);
        else
            ch = (char) ('A' + digit - 10);
        convert(n / 16);
        hexa = hexa + ch;
    }

    void display()
    {
        convert(num);
        if (hexa.equals(""))
            hexa = "0";
        System.out.println("Decimal number = " + num);
        System.out.println("Hexadecimal equivalent = " + hexa);
    }

    public static void main(String[] args)
    {
        DeciHex obj = new DeciHex();
        obj.getNum();
        obj.display();
    }
}