Class 11 Computer Science — Chapter 6: FLOW OF CONTROL

What you'll learn

• ▸Introduction to Flow of Control
• ▸The `if` Statement
• ▸The `if...else` Statement
• ▸The `if...elif...else` Chain
• ▸Nested `if` Statements
• ▸Indentation
• ▸Concept of Repetition (Iteration)

Chapter Summary

--- PAGE 1 --- CHAPTER 6 FLOW OF CONTROL 6.1 INTRODUCTION In Figure 6.1, we see a bus carrying the children to school. There is only one way to reach the school. The driver has no choice, but to follow the road one milestone after another to reach the school. We learnt in Chapter 5 that this is the concept of sequence, where Python executes one statement after another from beginning to the end of the program. These are the kind of programs we have been writing till now. “Don’t you hate code that’s not properly indented? Making it [indenting] part of the syntax guarantees that all code is properly indented.” — G. van Rossum SCHOOLBUS School Figure 6.1: Bus carrying students to school Let us consider a program 6-1 that executes in sequence, that …

Practice Questions from this Chapter

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1. Explain decision-making in robots. Get Solution →
2. Give an example of choosing a path. Get Solution →
3. Show me a conditional puzzle. Get Solution →
4. According to the text, what is the order of execution of statements in a program known as? Get Solution →
5. What are the two types of control structures that Python supports for implementing flow of control? Get Solution →
6. Which Python statement is used to implement the concept of decision making or selection? Get Solution →
7. In Python's `if..elif..else` structure, what is `elif` a shorthand for? Get Solution →
8. In Python, what is used to associate statements into a single block of code, instead of curly brackets? Get Solution →

Did you know?

• 💡 Our brains make over 35,000 tiny decisions daily, often without us noticing.
• 💡 Ancient Greeks developed logical "if-then" statements to explain reasoning centuries ago.
• 💡 Early computer programs used physical switches and wires to control the flow of data.
• 💡 The world's largest maze in Hawaii spans three acres and has over 14,000 colorful plants.
• 💡 Robots use "if-then" decisions to navigate rooms and avoid obstacles.

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