Loops for and while for a test

What is a loop in programming?

A loop allows repeated execution of code until a specified condition is met.

Difference between 'for' and 'while' loops

'For' loops are used when the number of iterations is known. 'While' loops run as long as a condition is true.

True or false: A 'for' loop uses a counter.

True, because 'for' loops typically include initialization, condition, and increment/decrement.

Fill in the blank: A 'while' loop checks the ______ before executing.

condition

What is the syntax of a 'for' loop?

'for (initialization; condition; increment) { // code }'

What is the syntax of a 'while' loop?

'while (condition) { // code }'

Use case for 'for' loops.

Ideal for iterating over fixed ranges or arrays.

Use case for 'while' loops.

Best for situations where the number of iterations is unknown.

What happens if the condition of a 'while' loop is never false?

It creates an infinite loop, causing the program to run indefinitely.

True or false: You can nest loops.

True, because loops can exist inside other loops.

What is a 'break' statement?

A command that exits the loop immediately when executed.

What is a 'continue' statement?

A command that skips the current iteration and continues with the next one.

When should you use 'break'?

Use 'break' to exit a loop when a certain condition is met unexpectedly.

What is an infinite loop?

A loop that runs without termination due to always true conditions.

Difference between 'for' and 'foreach' loops.

'For' loops are more general; 'foreach' is specifically for iterating collections.

True or false: Loops can only execute sequentially.

False, because loops can be nested and executed in various orders.

Example of a simple 'for' loop.

for (int i = 0; i < 5; i++) { // code }