CBSE 9 AI (Artificial Intelligence) | 21. IF, FOR, WHILE by Abraham | Learn Smarter
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21. IF, FOR, WHILE

21. IF, FOR, WHILE

The chapter focuses on critical programming constructs essential for decision-making and repetition in logical processes, highlighting the IF statement, FOR loop, and WHILE loop. It explains the syntax, usage, and distinctions between these constructs while providing examples for clarity. Additionally, it covers nested structures, emphasizing that these programming tools are foundational for developing intelligent systems in artificial intelligence.

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  1. 21
    If, For, While

    This section covers three fundamental constructs in programmingβ€”IF...

  2. 21.1
    The If Statement

    The IF statement is a fundamental programming construct that enables...

  3. 21.1.1
    What Is The If Statement?

    The IF statement is a fundamental programming construct used for...

  4. 21.1.2

    The section covers the syntax of key programming constructs: IF statements,...

  5. 21.1.3
    If-Else Statement

    The IF-ELSE statement allows programs to execute different instructions...

  6. 21.1.4
    If-Elif-Else Ladder

    The IF-ELIF-ELSE ladder is a programming construct that allows checking...

  7. 21.2
    The For Loop

    The FOR loop is a programming construct that allows for the repetition of a...

  8. 21.2.1
    What Is The For Loop?

    The FOR loop in programming is used to repeat a block of code a...

  9. 21.2.2

    This section covers the syntax of control structures in programming,...

  10. 21.2.3

    This section explains the IF statements and their role in decision-making...

  11. 21.2.4
    Using For With Lists

    The section covers the use of the FOR loop to iterate over lists in...

  12. 21.3
    The While Loop

    The WHILE loop is a fundamental programming construct that repeats a block...

  13. 21.3.1
    What Is The While Loop?

    The WHILE loop is a programming construct used to repeat a block of code as...

  14. 21.3.2

    This section outlines the syntax for IF, FOR, and WHILE constructs in...

  15. 21.4
    Difference Between For And While

    This section highlights the key differences between FOR loops and WHILE...

  16. 21.5
    Nested If And Loops

    This section covers the concept of nesting IF statements within loops and...

What we have learnt

  • IF is used for decision-making based on conditions.
  • IF-ELSE and IF-ELIF-ELSE allow checking multiple conditions.
  • FOR is used when the number of repetitions is known.
  • WHILE is used when repetition continues until a condition becomes false.
  • Loops can be nested or combined with conditions for complex logic.

Key Concepts

-- IF Statement
A programming construct that executes a block of code when a specified condition is true.
-- FOR Loop
A control structure used to repeat a block of code a specific number of times when the number of iterations is known.
-- WHILE Loop
A control structure that repeats a block of code as long as a specific condition is true, suitable for unknown iteration counts.
-- Nested Structures
Combining IF statements within loops or loops within IF statements to create more complex logic.

Additional Learning Materials

Supplementary resources to enhance your learning experience.