Introduction to Java For Loop

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Questions and Answers

What is the purpose of the decrement operator in Java?

  • Increase the value of the operand by one
  • Decrease the value of the operand by one (correct)
  • Multiply the value of the operand by negative one
  • Assign a new value to the operand

In Java, what is a nested for loop?

  • A loop that modifies the values of variables within an array
  • A loop that contains another loop inside its body (correct)
  • A loop that runs only when a specific condition is met
  • A loop that sequentially executes code line by line

What happens to the inner loop in a nested for loop?

  • It runs completely whenever the outer loop runs (correct)
  • It stops after the first iteration of the outer loop
  • It executes only when the outer loop finishes
  • It skips every other iteration of the outer loop

Which item is not part of the output of the provided example?

<p>Table of 4 is: 4 8 12 15 20 24 28 32 36 (A)</p>
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Which of the following statements about loops in Java is correct?

<p>Each iteration of a for loop modifies the iteration variable before entering the body. (D)</p>
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What is essential for a nested for loop to execute properly?

<p>'break' keyword at the end of the inner loop (D)</p>
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How does a nested for loop differ from a regular for loop?

<p>A nested for loop contains another loop within its body (C)</p>
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What does the decrement operator in Java look like?

<p>-- (A)</p>
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What does the decrement operator in Java do?

<p>Decreases its operand by one (B)</p>
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What is a nested for loop in Java?

<p>A loop that runs inside another loop (B)</p>
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What does a nested for loop allow in Java?

<p>It allows the inner loop to run completely with every iteration of the outer loop (A)</p>
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Which of the following is an effect of having a nested for loop in Java?

<p>The inner loop executes fully with each iteration of the outer loop (D)</p>
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What is true about the execution of a nested for loop in Java?

<p>The inner loop's execution depends on the outer loop (C)</p>
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In a nested for loop, how does the inner loop relate to the outer loop's execution?

<p>The inner loop runs once for every iteration of the outer loop (D)</p>
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What is the result of using a decrement operator on a variable in Java?

<p>The variable decreases by one (B)</p>
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