Chapter 7.4, Problem 7.12CP

Explanation of Solution

Passing arrays as an argument:

An array variable can be passed as argument to any method means passing the reference of array variable.

The method has direct access to actual array values because array always passed by reference, method which receives an array as an argument.

For example:

//Declare and initialize the array variable

int[] num = { 1, 2, 3 };

/*Call the displayNumber() method by passing the array variable as argument. */

displayNumber(num);

//Define the displayNumber() method

private void displayNumber(int[] a)

{

    //The loop executes until the array value

    foreach (int i in a)

        //Display the array value in message box

        Messagebox...