Declaration, Assignment & Initialization of an Array

int[] myArrayA = new int[5];
myArrayA = {1, 2, 3, 4, 5};

int[] myArrayB = new int[5];
Console.WriteLine(myArrayB[5]);

int[] myArrayC = new int[5];
myArrayC[5] = 12;

int[] myArrayD = new int[5];
Console.WriteLine(myArrayD);

Second Array Manipulation

Write a program that

1. declares an array myArray of int of size 10,
2. initializes myArray with the values 1, 2, 3, …, 9 and 10,
3. displays the content of myArray.
4. sums the values stored in myArray and displays the result.
5. computes the product of the values stored in myArray and displays the result.

If you are unsure how to get started, you can use the following code.

int[] myArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
int i = 0;
int sum = 0;
int product = 1;
while(i < myArray.Length){
    // Fill this!
    i++;
}
Console.WriteLine("The sum of the values in the array is " + sum + ".");

Console.WriteLine("The product of the values in the array is " + product + ".");

Exploring Arrays

For this part, create a new array:

1. declare a char array of length 6, name it letters
2. initialize the first 4 indices of letters with the following values: 'a', 'b', 'c', 'd'
3. initialize index 5 of letters with the value 'f'

Now, write the following statements:

1. Write a statement to display the last char value in letters (should display f).
2. Write a statement to display the value stored at index 4. What is that value? Why?
3. Write a statement to display the characters in the first half of the array ('a', 'b', 'c' but no others).

Execute your program to ensure you are seeing the expected output before proceeding.

Next, update the part of the program where letters is declared and change the length of letters to 8. Do not modify any other parts of the program. Then execute the program again.

Answer the following questions:

1. What is the last char of the letters array now, after changing its length?
2. Does your program still output the last char value in letters array?
3. When displaying the first half of the array, does your program still display the first half? (After changing the length, the first half contains the values 'a', 'b', 'c', 'd')
4. If you did not get the last value or the first half you expected, can you think of a way to perform these array operations in a way that can accommodate arrays of different lengths?