📚 Topic Summary
if-then-else statements are fundamental to programming logic. They allow your code to make decisions based on conditions. A clear if-then-else statement is easy to read and understand, reducing the chance of errors and making your code maintainable. Best practices involve using meaningful variable names, keeping the logic simple, using comments when necessary, and ensuring all possible conditions are handled. Proper indentation is also key to readability. Avoiding nested if-then-else statements when possible simplifies the code even further. When nesting is unavoidable, make sure it's well-organized and clearly documented.
Ultimately, strive for code that is self-documenting. This means the structure and variable names should be clear enough that the code largely explains itself. Use comments to clarify intent or explain complex logic, but prioritize clear, concise code over extensive commenting. Properly structured and well-documented if-then-else statements contribute significantly to the overall quality of your code.
🧮 Part A: Vocabulary
| Term |
Definition |
| 1. Condition |
A. Code that executes if the condition is false. |
| 2. Boolean |
B. A statement that evaluates to either true or false. |
| 3. 'Then' Block |
C. The part of the statement that's run when the condition is true. |
| 4. 'Else' Block |
D. A data type that can have only two values: true or false. |
| 5. Nesting |
E. Placing one if-then-else statement inside another. |
Match the term to its definition.
✍️ Part B: Fill in the Blanks
A clear if-then-else statement makes your code more __________. It helps prevent __________ and makes it easier to __________ the code later. Always consider both the __________ and __________ outcomes of your condition.
🤔 Part C: Critical Thinking
Describe a real-world scenario where using a well-structured if-then-else statement would be crucial for preventing errors or ensuring a program behaves predictably. How would you ensure its clarity and maintainability?