while loop
Definition
A while loop is a control flow statement that allows a block of code to be executed repeatedly as long as a specified condition is true.
Analogy
Imagine you're playing a video game and your character needs to keep collecting coins until they reach a certain score. The while loop is like the game's instructions telling your character to keep collecting coins until the score reaches the desired value.
Related terms
Condition: A condition is an expression that evaluates to either true or false, determining whether the code inside the while loop should be executed.
Loop body: The loop body refers to the block of code that gets executed repeatedly as long as the condition in the while loop remains true.
Infinite loop: An infinite loop occurs when the condition in a while loop always evaluates to true, causing the code inside it to repeat indefinitely.
"while loop" appears in:
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Practice Questions (8)
- Which example demonstrates the use of a while loop?
- How is a for loop different from a while loop?
- How can a for loop be converted into a while loop?
- When would you choose a while loop over a for loop?
- What while loop will give the same output as this for loop: for (int i = 0; i < 10; i++) { System.out.println(i); }
- What is the advantage of using a for loop over a while loop for array traversal?
- What is the purpose of a while loop?
- What happens if the condition of a while loop is always true?
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