Control flow

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Making programs think

So far, your programs run top to bottom, executing every line. But real programs need to make decisions - “if this, then that”. Control flow is what makes programs intelligent!

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The main topics

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Real-world examples

Decision-making is everywhere:

• ATM: IF password correct, THEN allow access
• Apps: IF user clicks button, THEN perform action
• Weather app: IF temperature < 0, THEN show snow icon
• Games: IF health = 0, THEN game over

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Prerequisites

Before starting this section, make sure you understand:

• Variables and data types
• Operators (especially comparison operators)
• Boolean values (True/False)

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Let’s begin!

Start with the foundation of all program logic: if statements.