1. Arrays Part 2

2. Objectives Search a one-dimensional array
Compute the average of a one-dimensional array’s contents
Find the highest entry in a one-dimensional array
Update the contents of a one-dimensional array
Sort a one-dimensional array

3. Manipulating One-Dimensional Arrays
Array elements can be used like any other variable
Examples:
Display the contents of an array
Access an array element using its subscript
Search the array
Calculate the average of data stored in a numeric array
Find the highest value stored in an array
Update array elements
Sort array elements

4. The For Each…Next Statement
Used to code a loop which processes each element in a group or array
Creates a variable used to represent each item in the group or array
Data type of the element must match the data type of the group
Syntax:
For each element [as datatype} in group
Statement(s)
Next

5. The For Each…Next Statement (cont’d)
Hands-on Example

6. Searching a One-Dimensional Array
Hands-on Example

7. Calculating the Average Amount Stored in a One-Dimensional Numeric Array
Sample application:
Find the average from an array of test scores
Length property: number of elements in the array

8. Determining the Highest Value Stored in a One-Dimensional Array
Hands-on Example

9. Updating the Values Stored in a One-Dimensional Array
Hands-on Example

10. Sorting the Data Stored in a One-Dimensional Array
Sorting: arranging data in a specific order
Ascending: first element is smallest, last element is largest
Descending: first element is largest, last element is smallest
Array.Sort method: used to sort elements in a one-dimensional array in ascending order
Array.Reverse method: used after Array.Sort method to change to descending order

11. Sorting the Data Stored in a One-Dimensional Array (con’d)
Hands-on Example