Create a new Java project/class called ChangeUp. Create an empty int array of size 6. Create a method called populateArray that

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3 years ago

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Create a new Java project/class called ChangeUp. Create an empty int array of size 6. Create a method called populateArray that

will pass an array, use random class to choose a random index and prompt the user to enter a value, store the value in the array. Note: Generate 6 random index numbers in an attempt to fill the array. Create a method called printArray that prints the contents of the array using the for each enhanced loop. Submit code. Note: It is possible that your array won't be filled and some values will still have 0 stored. That is acceptable.

Computers and Technology

1 answer:

-Dominant- [34] · Answer 1 · 2022-06-28T04:56:05+03:00

<h2>Answer:</h2><h2></h2>

//import the Random and Scanner classes

import java.util.Random;

import java.util.Scanner;

//Begin class definition

public class ChangeUp {

//Begin the main method

public static void main(String args[]) {

//Initialize the empty array of 6 elements

int [] numbers = new int [6];

//Call to the populateArray method

populateArray(numbers);

} //End of main method

//Method to populate the array and print out the populated array

//Parameter arr is the array to be populated

public static void populateArray(int [] arr){

//Create object of the Random class to generate the random index

Random rand = new Random();

//Create object of the Scanner class to read user's inputs

Scanner input = new Scanner(System.in);

//Initialize a counter variable to control the while loop

int i = 0;

//Begin the while loop. This loop runs as many times as the number of elements in the array - 6 in this case.

while(i < arr.length){

//generate random number using the Random object (rand) created above, and store in an int variable (randomNumber)

int randomNumber = rand.nextInt(6);

//(Optional) Print out a line for formatting purposes

System.out.println();

//prompt user to enter a value

System.out.println("Enter a value " + (i + 1));

//Receive the user input using the Scanner object(input) created earlier.

//Store input in an int variable (inputNumber)

int inputNumber = input.nextInt();

//Store the value entered by the user in the array at the index specified by the random number

arr[randomNumber] = inputNumber;

//increment the counter by 1

i++;

}

//(Optional) Print out a line for formatting purposes

System.out.println();

//(Optional) Print out a description text

System.out.println("The populated array is : ");

//Print out the array content using enhanced for loop

//separating each element by a space

for(int x: arr){

System.out.print(x + " ");

}

} //End of populateArray method

} //End of class definition

<h2>Explanation:</h2>

The code above is written in Java. It contains comments explaining the lines of the code.

This source code together with a sample output has been attached to this response.

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