RAPTOR (Rapid Algorithmic Prototyping Tool for Ordered Reasoning) is a flowchart-based programming tool designed to help users visualize algorithms. Here are some examples of simple RAPTOR programs: Program 1: Print ‘Welcome` message on the screen Step 1: Open RAPTOR
• Launch the RAPTOR application on your computer.
Step 2: Create a New Flowchart
• Start a new flowchart by selecting "New" from the menu.
Step 3: Add a Start Symbol
• Drag the Start symbol (oval shape) onto the workspace. This indicates the beginning of your program.
Step 4: Add an Output Symbol
• Drag an Output symbol (parallelogram shape) onto the workspace.
• Connect it to the Start symbol by dragging a line from Start to Output.
Step 5: Configure the Output Symbol
• Double-click on the Output symbol to open its properties.
• In the text box, type "Welcome" (including quotes) to display this message when the program runs.
Step 6: Add an End Symbol
• Drag an End symbol (oval shape) onto the workspace.
• Connect it from the Output symbol to indicate that the program will terminate after displaying the message.
Step 7: Run Your Program
• Click on the "Run" button (play icon) in the toolbar to execute your flowchart.
• A dialog box should appear displaying "Welcome".
Flowchart Overview
Your flowchart should look like this:
[Start] --> [Output: "Welcome"] --> [End]
Program2:Addition of 2 numbers.
Step 1: Open RAPTOR
- Launch the RAPTOR application on your computer.
Step 2: Create a New Flowchart
- Start a new flowchart by selecting "New" from the menu.
Step 3: Add a Start Symbol
- Drag the Start symbol (oval shape) onto the workspace to indicate the beginning of your program.
Step 4: Add Input Symbols
- You will need two Input symbols (parallelogram shapes) to get the numbers from the user.
- Drag the first Input symbol onto the workspace. Connect it to the Start symbol.
- Double-click on this Input symbol and set its prompt to `"Enter the first number:"`. Assign a variable name, for example, `num1`.
- Drag a second Input symbol onto the workspace. Connect it to the first Input symbol.
- Double-click on this second Input symbol and set its prompt to `"Enter the second number:"`. Assign a variable name, for example, `num2`.
Step 5: Add a Calculation Symbol
- Drag a Process symbol (rectangle shape) onto the workspace. Connect it to the second Input symbol.
- Double-click on this Process symbol and enter the expression for summing the two numbers. For example:
sum = num1 + num2
Here, `sum` is a new variable that will hold the result of the addition.
Step 6: Add an Output Symbol
- Drag an **Output** symbol onto the workspace and connect it to the Process symbol.
- Double-click on this Output symbol and set its message to:
"The sum is: " + sum
This will display the result of the addition when executed.
Step 7: Add an End Symbol
- Finally, drag an **End** symbol (oval shape) onto the workspace and connect it from the Output symbol to indicate that the program will terminate after displaying the result.
Step 8: Run Your Program
- Click on the "Run" button (play icon) in the toolbar to execute your flowchart.
- Follow the prompts to enter two numbers, and you should see their sum displayed.
Flowchart Overview
Your flowchart should look like this:
```
[Start]
|
[Input: "Enter first number"] --> [Input: "Enter second number"]
| |
[Process: sum = num1 + num2] |
|
[Output: "The sum is: " + sum]
|
[End]
