Object-Oriented Programming (Using Java Language) =

import java.util.Scanner;

class Main {  

 public static void main(String args[]) {

       Scanner scan = new Scanner(System.in);

       System.out.print("Enter a decimal value (0 to 15): ");

       int num = scan.nextInt();

       scan.close();

       if (num < 0 || num >15) {

           System.out.printf("%d is an invalid input\n", num);

       } else {

           System.out.printf("The hex value is %X\n", num);

       }

 }

}

Explanation:

Hopefully this example will get you going for the other assignments.

research the organization

compare your skills and qualifications

prepare responses

plan what to wear

plan what to bring

pay attention to non- verbal communication

follow up