If statement execution flow in C Sharp (C#) - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of an if statement in C#?

An if statement checks a condition and runs a block of code only if that condition is true.

beginner

What happens when the condition in an if statement is false?

The code inside the if block is skipped, and the program continues with the next statement after the if block.

beginner

Explain the flow of an if-else statement.

If the if condition is true, its block runs. If false, the else block runs instead.

intermediate

What is the role of else if in C#?

else if lets you check multiple conditions one after another. The first true condition runs its block, and the rest are skipped.

intermediate

How does the program decide which block to execute in an if-else if-else chain?

It checks each condition from top to bottom. The first condition that is true runs its block, and the rest are ignored. If none are true, the else block runs.

What happens if the if condition is false and there is no else block?

A The program skips the <code>if</code> block and continues after it.

B The program runs an error.

C The program stops running.

D The program runs the <code>if</code> block anyway.

If the if condition is false and no else block exists, the program skips the if block and continues with the next statements.

In an if-else if-else chain, how many blocks can run?

A All blocks run.

B Only the <code>else</code> block runs.

C Only the first true condition's block runs.

D None run.

Only the first block with a true condition runs. The rest are skipped.

Which keyword allows checking multiple conditions in sequence?

A else

B else if

C switch

D for

else if lets you check multiple conditions one after another.

What is the correct syntax to start an if statement in C#?

A if (condition) { }

B if condition { }

C if: condition { }

D if [condition] { }

The correct syntax is if (condition) { } with parentheses around the condition.

What does the program do after finishing an if block?

A It repeats the <code>if</code> block.

B It stops running.

C It jumps to the start of the program.

D It continues with the next statement after the <code>if</code> block.

After an if block, the program continues with the next statement in order.

Describe how an if-else if-else statement controls the flow of a program.

Think about how the program chooses which code to run based on conditions.

Explain what happens when an if condition is false and there is no else block.

Consider what the program does when the condition is not met and no alternative is given.