Welcome to a new chapter on this exciting journey!
So far, our code examples have run straight through, one line after another, from top to bottom.
But what if we only want to run certain lines sometimes?
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Can you think about real-life decisions or scenarios where this can come up?
This is where control structures come in! They are fundamental tools in programming that allow us to control the flow of execution – the order in which instructions are run.
They help our programs make decisions or repeat tasks.
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Isn't that powerful?
Imagine a recipe. Usually, you follow steps 1, 2, 3. But sometimes it says, "If using fresh herbs, chop them now" or "Stir for 5 minutes."
Control structures are like these special instructions in our code.
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Make sense so far?
There are two main kinds of control structures we'll explore:
- Conditional Statements: Like
if
statements, they run code only if a certain condition is true. - Loops: They repeat a block of code multiple times.
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Which type sounds like it handles choices?
Conditional statements let programs react differently to different situations. The most basic one is the if
statement. It checks if something is true before running specific code.
It's like saying, "If it's raining, take an umbrella."
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