Control structures in C++ affect how statements are executed and include sequence, selection, and loop structures. Sequence structures execute statements sequentially, selection structures choose between alternatives using if, if/else, and switch statements, and loop structures repeat statements using do-while, while, and for loops. Common control structures are used to make decisions, repeat actions, and transfer control based on conditions.

1. PREPARED BY:-
NITIN KUMAR

2. Control Structures
 Control structures are used to affect how statements
are executed.
 Sequence structure (Straight line)
 Selection structure (Branching)
 Loop structure (Iteration or repetition)

3. Sequence Structure
 Statements are executed one after the other.
 This is C++'s default behavior!

4. Selection Structure
 Used to choose among alternative courses of action.
 Making decisions
•If
•if/else
•switch

5. If selection structure
 Used to do something if some condition is “true”.

6. If/else selection structure
 Used to do one thing if some condition is “true”,
something else if the condition is “false”.

7. Switch Selection structure
 This is a multiple-Branching Statement where based
on a condition the control is transferred to one of the
many possible points.

8. Loop structure
 Used to repeat a set of instructions.
 Looping
•Do-While
•While
•For

9. Do-While Loop structure
 The do-while is an exit-controlled loop . based on a
condition the control is transferred back to a particular
point in the program.

10. While Loop structure
 The while loop is an entry-controlled loop .

11. For Loop structure
 The For is an entry-controlled loop and is used when
an action is to be repeated for a predetermined
number of times.

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