Answer to Question #204007 in Java | JSP | JSF for Prim

Question

The organisation you work for has asked you to create an interactive application that will assist with the allocation of employees to a cell phone network provider and phone number generation. You are required to prompt a user for three employee names which will randomly assign the employee to either the Vodacom, MTN or Cell C network. The employees also require a randomly generated phone number. The start of each phone number will begin with the following, depending on the network provider:

Answer 1

import java.util.Random;
import java.util.Scanner;


public class PhoneNetworkProvider {


	private static Random rnd = new Random();
	private static String allProviders[] = { "Vodacom", "MTN", "Cell C" };
	private static final int NUMBER_EMPLOYEES = 3;
	private static String nameOfEmployees[] = new String[NUMBER_EMPLOYEES];
	private static String networkProviderOfEmployees[] = new String[NUMBER_EMPLOYEES];
	private static String phonesOfEmployees[] = new String[NUMBER_EMPLOYEES];


	/**
	 * The start point of the program
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		for (int i = 0; i < NUMBER_EMPLOYEES; i++) {
			System.out.print("Enter the employee name " + (i + 1) + ": ");
			nameOfEmployees[i] = scanner.nextLine();
			networkProviderOfEmployees[i] = generateRandomProvider(networkProviderOfEmployees);
			phonesOfEmployees[i] = getEmployeePhone(networkProviderOfEmployees[i]);
		}


		System.out.println("\nCELL PHONE NUMBER GENERATOR");
		System.out.println("**********************************************");
		for (int i = 0; i < NUMBER_EMPLOYEES; i++) {
			System.out.println("The employee " + nameOfEmployees[i]+" has '"+networkProviderOfEmployees[i]+
					"' network provider with phone number "+phonesOfEmployees[i]);
		}


		scanner.close();
	}


	/**
	 * Returns employee random provider
	 * 
	 * @param employeeNetworkProviders
	 * @return
	 */
	private static String generateRandomProvider(String employeeNetworkProviders[]) {
		int rndValue = -1;
		while (rndValue == -1) {
			rndValue = rnd.nextInt(allProviders.length);
			for (int provider = 0; provider < allProviders.length; provider++) {
				if (employeeNetworkProviders[provider] == allProviders[rndValue]) {
					rndValue = -1;
					break;
				}
			}
		}
		return allProviders[rndValue];
	}


	/**
	 * Returns employee phone
	 * 
	 * @param networkProvider
	 * @return
	 */
	private static String getEmployeePhone(String networkProvider) {
		String phoneOfEmployee = "072 ";
		if (networkProvider == allProviders[1]) {
			phoneOfEmployee = "083 ";
		}
		if (networkProvider == allProviders[2]) {
			phoneOfEmployee = "084 ";
		}


		for (int p = 0; p < 3; p++) {
			phoneOfEmployee += rnd.nextInt(10);
		}
		phoneOfEmployee += "-(";
		for (int p = 0; p < 4; p++) {
			phoneOfEmployee += rnd.nextInt(10);
		}
		phoneOfEmployee += ")";
		return phoneOfEmployee;
	}
}