Loop execution flow in Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the first step in the execution flow of a for loop in Java?

The initialization step is executed first, where the loop variable is set to its starting value.

beginner

In a while loop, when is the condition checked?

The condition is checked before each iteration. If the condition is false initially, the loop body does not execute at all.

beginner

What happens after the loop body executes in a for loop?

After the loop body executes, the update step runs (e.g., incrementing the loop variable), then the condition is checked again.

intermediate

How does a do-while loop differ in execution flow from a while loop?

A do-while loop executes the loop body first, then checks the condition. This guarantees the loop body runs at least once.

beginner

What causes a loop to terminate in Java?

A loop terminates when its condition evaluates to false or when a break statement is executed inside the loop body.

In a for loop, which part runs after each iteration of the loop body?

A Initialization

B Update

C Loop termination

D Condition check

After the loop body executes, the update step runs (like incrementing the loop variable).

When does the condition check happen in a while loop?

A Before the loop body executes

B After the loop body executes

C Only once at the start

D Never

The condition is checked before each iteration; if false initially, the loop body does not run.

Which loop guarantees the body runs at least once?

A <code>for</code> loop

B <code>while</code> loop

C None of the above

D <code>do-while</code> loop

A do-while loop runs the body first, then checks the condition.

What happens if the loop condition is false at the start of a while loop?

A The loop body executes once

B The loop body executes multiple times

C The loop body does not execute

D The loop runs infinitely

If the condition is false initially, the while loop body does not execute at all.

Which statement can immediately exit a loop regardless of the condition?

A break

B continue

C return

D exit

The break statement exits the loop immediately.

Explain the step-by-step execution flow of a for loop in Java.

Think about what happens before, during, and after each loop cycle.

Describe the difference in execution flow between a while loop and a do-while loop.

Focus on when the condition is checked relative to the loop body.