This was an assignment for an advance college course at my local community college. The assignment gives you much of the code, it combines two seperate arrays, names and phone numbers, into a single multidimensional array. It allows the user the to look up numbers too.

PhoneBook.java

// Kurt Kaiser
// CTIM-168 E40
// 7.13.2018

import java.util.Scanner;

public class PhoneBook
{
    /* Creates multidimensional array of numbers and
       asking for users input, calls lookup and outputs
       the returned result
     */
    public static void main(String[] args) {
        Scanner kbd = new Scanner(System.in);
        String[][] listings = {
                {"Michael Myers", "333-8000"},
                {"Ash Williams", "333-2323"},
                {"Jack Torrance", "333-6150"},
                {"Freddy Krueger", "339-7970"}

        };
        System.out.println("Enter name to look up.");
        String targetName = kbd.nextLine();
        String targetPhone = lookupName(targetName, listings);
        System.out.println("The phone number is " + targetPhone);

    }

    /* Loops through the multidimensional array of names to return
       the associated number
     */
    public static String lookupName(String targetName, String listings[][]){
        for (int i = 0; i < 4; i++){
            if (targetName.equals(listings[i][0])){
                //System.out.println("Number: " + listings[i][1]);
                return listings[i][1];
            }
        }
        return "";
    }

}