In this lesson we explain how Selection Sort and Quick Sort work, discuss their Algorithms, and show how to use them in VB.Net to sort arrays.
Selection Sort is relatively easy to understand, but it is far too slow for very large groups of data, as the group needs to be scanned many times in many passes.
In the first part of the lesson we create a VB.Net Program to Selection Sort an Array of ten numbers.
We strongly recommend that you purchase and download the resources pack for this lesson, as the code needs to be structured correctly. Also included in the Resources Download is the Form Design as well as the full code listing.
The VB.Net Program does Selection Sort and shows all of the Sort Passes as it runs.
In the second part of the lesson we go through how Quick Sort works and show its Algorithm and supply a link to a Video which shows how to code it in VB.Net.
The Step by Step Guide which is available below for this lesson, shows exactly what needs to be done.
This Guide has all of the Design Principles and Theory behind what is being done at each stage of application development.
Included in the Resources Download for this lesson are Visual Basic Code Listings, as well as the Form Designs.
If you are a Teacher or Instructor we suggest you click the downloads link below and get the lesson materials for your students.
Give these resources to your students and we think you will find that some of them will "get it" very quickly.
The other students need to watch the video for this lesson which goes through everything in full detail slowly step by step with repetition of examples.
Note that the example Lesson Images shown on this web page are basic Printscreens, whereas the actual original Images are of perfect clarity and quality in the downloadable PDF Guide for this lesson.
LESSON OVERVIEW
This lesson consists of a Video Presentation where we cover the following:
- Lesson Introduction
- Why Sort Data ?
- Sorting Algorithms
- Selection Sort
- Selection Sort Simple Algorithm
- Selection Sort Detailed Algorithm
- VB Selection Sort Form Design
- VB Selection Sort Program Coding
- VB Selection Sort - Test Program
- Challenge Task 1 - Sorting Strings
- Quick Sort
- Quick Sort Example
- Quick Sort Explanation
- Quick Sort Visual Demonstration
- Quick Sort Dancing Video
- Quick Sort Algorithm
- Challenge Task 2 - Code Quick Sort
- Quick Sort Wrap-Up
- Exam Questions on Sorting
- Doing our Website Programming Course
- Video Wrap Up and Outro
Watch the following YouTube Video Tutorial about Selection Sort and Quick Sort.
We recommend you use the RESOURCE MATERIALS available below
to follow along step by step with the Tutorial Video.
The YouTube Video is free to watch as many times as you want, and the Lesson Build Guide including all required Files and full program code listing(s) are available at a small cost which can be paid for and downloaded using PayPal.
Before purchasing and downloading the following resources, check first with your Teacher or Instructor, as they may already have copies of these documents to give to you.
Our Programming Learning Modules are designed for complete beginners, and they have been extensively trialled with High School students learning Programming for the first time. They have a proven track record of being able to get everyone up and running with Microsoft Visual Basic - the world's most popular Beginner Programmer's language.
We highly recommend using the Step by Step Summary Guide as well as the other support materials to maximise learning outcomes.
Our students have found the Summary Guide to be far more useful than re-watching the Video, when it comes time for them to apply their newly acquired skills to Application Build tasks.
Prices for the Resource Package including the Guide, Files, Form Design, and full Program Code Listings are:
A Single Computer Licence for Personal Use is $AUD 2.50 (Approx $US 1.88).
A Site Licence for Business or Education Training for up to 30 people is $AUD 5.30 (Approx $US 3.97).
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