This document contains information about control statements in C programming including while, for, and do-while loops. It provides the syntax and explanation of how each statement works. A while loop repeatedly executes a target statement as long as a condition is true. A for statement lets you repeat a statement a specified number of times using initialization, condition, and loop expression. A do-while loop guarantees to execute at least once since the conditional expression is checked at the end of the loop.

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Control Statements

2. Control Statements
While Statements
A while loop statement in C programming language repeatedly executes a target
statement as long as a given condition is true.
Syntax:
The syntax of a while loop in C programming language is:
while(condition)
{
statement(s);
}
Here, statement(s) may be a single statement or a block of statements.
The condition may be any expression, and true is any nonzero value. The loop iterates
while the condition is true.
When the condition becomes false, program control passes to the line immediately
following the loop.

3. Control Statements
for Statements
The for statement lets you repeat a statement or compound statement a specified
number of times. The body of a for statement is executed zero or more times until
an optional condition becomes false. You can use optional expressions within
the for statement to initialize and change values during the for statement's
execution.
Syntax
iteration-statement:for (init-expression;cond-expression;loop expression )statement

4. Control Statements
do-while Statements
A do...while loop is similar to a while loop, except that a do...while loop is
guaranteed to execute at least one time.
Syntax:
The syntax of a do...while loop in C programming language is:
do
{
statement(s);
}
while( condition );
Notice that the conditional expression appears at the end of the loop, so the
statement(s) in the loop execute once before the condition is tested.
If the condition is true, the flow of control jumps back up to do, and the
statement(s) in the loop execute again. This process repeats until the given condition
becomes false.

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