Question

Create a Java program which asks the user how many names they want to enter. The program should then instantiate an array that will hold this many names. The main method should call a method, getNames() to allow the user to enter the names. A for loop should be used in this method. Once the names are entered, the main method should call another method displayNames() which will use a while loop to display the names entered.

Answer 1

/**
 * Please find the required solutions
 */

import java.util.Scanner;

public class NamesApp {

    /*Get Names method inputs names of length of parameters*/
    public static void getNames(String[] names) {

        // read names from user using for loop
        Scanner keyboard = new Scanner(System.in);
        for (int i = 0; i < names.length; i++) {
            System.out.println("Enter name " + (i + 1) + ": ");
            names[i] = keyboard.nextLine();
        }
        // finally close resource
        keyboard.close();
    }

    /**
     * Display names using while loop
     *
     * @param names
     */
    public static void displayNames(String[] names) {
        System.out.println("Displaying names: ");
        int i = 0;
        while (i < names.length)
            System.out.println(names[i++]);
    }

    /**
     * Main method with required implementation
     */
    public static void main(String[] args) {
        Scanner keyboard = new Scanner(System.in);
        System.out.println("Enter number of names to enter");
        int numberOfNames = keyboard.nextInt();
        keyboard.nextLine();

        String[] names = new String[numberOfNames];

        getNames(names);

        displayNames(names);
        keyboard.close();
    }
}
Sample output: