Programming Basics: if Statements

What is the purpose of an if statement in C?

The expression 'if(0)' in C is considered TRUE.

What happens in an if statement if the condition is FALSE?

What is a valid syntax of an if-else statement?

What does the if-else ladder allow?

In nested if statements, what happens if the first condition is FALSE?

In C, an if statement uses __ to determine which block of code to execute.

if Statement

Makes decisions based on a condition
Condition can be an expression, like if (x + y) or a direct value, like if (5)
If the expression produces zero or the direct value is zero, the condition is FALSE
If the expression produces any value other than zero, the condition is TRUE

Simple if statement

Evaluates a condition
If the condition is TRUE, it executes the code block following the statement
If the condition is FALSE, it skips the code block
Used when there is only one option to execute based on a condition

if-else statement

Evaluates a condition
If the condition is TRUE, executes the first block of code
If the condition is FALSE, executes the second block of code

Nested if statement

An if-else statement nested within another if-else statement
The inner if-else statement is executed only if the condition of the outer if statement is TRUE

if-else-if statement (if-else ladder)

Allows multiple test conditions to be checked
Executes different code blocks based on which condition is TRUE
If all conditions are FALSE, the code in the final else block is executed

This quiz covers the fundamentals of if statements in programming. You will learn about simple if statements, if-else statements, nested if statements, and if-else-if statements. Test your knowledge on how these control flow statements function in decision-making processes.