While Loops

A while loop runs as long as a condition is true. Use it when you don't know up-front how many times you'll loop.

Two escape hatches

• break — exit the loop immediately
• continue — skip to the next iteration

Pitfall

Forgetting to update the condition variable → infinite loop. Always ask "what makes this stop?"

Try it

1. Read user input in a loop until they type "quit". (Use a hardcoded list for now.)
2. Skip negative numbers in a list with continue.