A series of Lessons to Teach B4J to middle and high Schools
| Lesson | Details | Hours | |
|---|---|---|---|
| 1 | The B4X language | · Why B4X | 1 |
| · Downloading and Installing B4J and Java | |||
| · Customize environment | |||
| 2 | The meaning of the problem | · What is a problem | 1 |
| · Ways to represent a problem | |||
| 3 | My first Program | · Create a new program | 2 |
| · How to run a program | |||
| · How to Save | |||
| · The turtle | |||
| 4 | Variables and Range | · Int | 3 |
| · Float | |||
| · How to name a variable | |||
| · Mathematical Operators | |||
| · Assign Values to Variables | |||
| · The log function | |||
| · Strings | |||
| 5 | Designer | · Talking about Designer | 2 |
| · Design the first Screen | |||
| · Views: Labels, TextFields, Buttons, Panes | |||
| · Saving forms | |||
| 6 | From Designer to Code | · Passing Values to Code | 1 |
| · What happens when we write a value into a textField | |||
| · “What happens when we push a button” – Events | |||
| 7 | · Boolean Variables | 3 | |
| Conditional Statement | · Logical Operators | ||
| · If Statement | |||
| · If-Else Statement | |||
| · If-Else-Else If Statement | |||
| · Nested If Statements | |||
| 8 | B4XPages | · Class – Object a brief discussion | 2 |
| · What is a B4XPage | |||
| · How to Create and Delete a B4XPage | |||
| · Passing Values within Pages | |||
| 9 | Application 1 | · “A simple Calculator” | 3 |
| · With the help of teacher pupils creates a Calculator application with the 4 simple operations. | |||
| # | B4XViews | · What is a B4XView | 1 |
| · Hot to create B4XViews | |||
| · B4XViews events | |||
| # | Loops | · What are Loops? | 5 |
| · Types of Loops in B4X | |||
| · For – Next | |||
| · For – Each | |||
| · Do While | |||
| # | String manipulation | · String concatenation | 2 |
| · String builder | |||
| · String functions | |||
| # | Subroutines | · What is a subroutine | 4 |
| · Declaring a Sub | |||
| · Passing Values | |||
| · Returning Values from a sub | |||
| # | XUI Views | · Creating Dialogs | 2 |
| # | Arrays | · One dimensional Arrays | 4 |
| · Basic Operations with arrays | |||
| · Linear search | |||
| · Binary search | |||
| · MAX – MIN item | |||
| · Sorting with Bubble Sort | |||
| · Sorting with Selection Sort | |||
| # | Lists | · What is a list? | 2 |
| · Basic Operations with lists | |||
| # | Maps | · What is a map? | 2 |
| · Basic Operations with maps | |||
| # | Files | · File location in B4J | 2 |
| · File Methods | |||
| # | Application 2 | In this app pupils will test their knowledge creating an application based in previous lessons. | 10 |
| # | From B4J to B4A | How to move an application to B4A | 2 |
| Total Hours | 54 |