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Questions and Answers
What type of repetition involves terminating the execution of a block after a fixed number of times?
What type of repetition involves terminating the execution of a block after a fixed number of times?
Which of the following are types of loops provided by Java? (Select all that apply)
Which of the following are types of loops provided by Java? (Select all that apply)
What are loops used for in programming?
What are loops used for in programming?
Repeated execution of one or more statements until a terminating condition is reached.
The while loop evaluates the condition after the loop executes.
The while loop evaluates the condition after the loop executes.
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What is the purpose of a sentinel value in programming loops?
What is the purpose of a sentinel value in programming loops?
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Match the following loop types with their descriptions:
Match the following loop types with their descriptions:
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What common error occurs when writing a while loop for counter-controlled repetition?
What common error occurs when writing a while loop for counter-controlled repetition?
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Study Notes
Counter-Controlled Repetition
- Terminating the execution of a block after a fixed number of times is called counter-controlled repetition.
Types of Loops in Java
- for
- while
- do-while
Purpose of Loops
- Loops are used for repeating actions in programming.
while Loop Evaluation
- The while loop evaluates the condition before the loop executes, not after.
Sentinel Value
- A sentinel value is used to signal the end of input in a loop.
Loop Types
- for loop: used for counter-controlled repetition.
- while loop: used for indefinite repetition, where the number of iterations is unknown.
- do-while loop: also used for indefinite repetition, but it guarantees that the loop body executes at least once.
Common While Loop Error
- A common error in while loops for counter-controlled repetition is forgetting to update the loop control variable, leading to an infinite loop.
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Description
This quiz covers the basics of loops in Java, focusing on counter-controlled and sentinel-controlled repetition. It's designed to test your understanding of for, while, and do-while loop statements. Enhance your programming skills by mastering these essential concepts!
