The document outlines the steps to develop a simple math operations program in Visual Basic to help the programmer's younger brother learn addition, subtraction, multiplication, and division. The steps include: 1) Analyzing the problem to understand the input, output, and calculation formulas 2) Designing the program flow using pseudo code and a flowchart, and the user interface 3) Coding the program using Visual Basic scripts for each calculation 4) Testing and debugging the program 5) Creating internal and external documentation

1. PROGRAMMING Program Development 040407 Prepared by: Norhasimah Mohamed, Head Of ICT Panel, SMK Sungai Pusu, Gombak Selangor.

2. Learning Outcomes Apply program development phases to solve problems Develop a program

3. Situation Your younger brother has a problem with a basic mathematic operations like addition, subtraction, multiplication, and division. Your parents ask you to develop one simple system using Visual Basic to help your brother. Your system should have function button to calculate the additional, subtraction, multiplication, and division for at least two integer numbers

4. Programming Development Phase Problem Analysis Program Design Coding Testing and Debugging Documentation

5. 1. Problem Analysis What the problem? What the input, process, and output? What the formula on how to calculate the mathematic operations? 1

6. 2. Program Design Write the pseudo code Write flow chart Design user interface 2

7. Pseudo code PROGRAM Mathematic_Operations READ the first number READ the second number READ commandbutton Add CALCULATE the sum of number 1 and number 2 PRINT the answer for Addition END PROGRAM

8. Flow Chart START READ number 1 & 2 CALCULATE STOP/END PRINT the answer

9. User Interface

10. 3. Coding SCRIPTING 3

11. Coding ‘ formula for additional (internal documentation) Private Sub cmdAdd_Click() Dim Number1, Number2 As Integer Number1 = txtNumber1.Text Number2 = txtNumber2.Text txtSum = Number1 + Number2 End Sub

12. 4. Testing and Debugging RUN & COMPILING 4

13. 5. Documentation Internal Documentation External Documentation 5

14. Exercises Modify the additional formula to use for subtractions, multiplication and division.