1Z0-811 Java Basics and Syntax Practice Question
What is the scope of a variable declared inside a for loop?
⚠ Common exam trap
Oracle often tests the misconception that a variable declared in the for loop's initialization block has method-level scope, leading candidates to incorrectly choose 'Inside the entire method' when the variable is actually scoped only to the loop block.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Only inside the loop block
In Java, a variable declared inside a for loop (including the initialization block or the loop body) has block scope, meaning it is only accessible within the loop block itself. This is defined by the Java Language Specification (JLS §6.10), which states that the scope of a local variable declaration is the rest of the block in which the declaration appears. Once the loop completes, the variable goes out of scope and cannot be referenced.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Inside the package
Why it's wrong here
Not applicable.
- ✓
Only inside the loop block
Why this is correct
Correct: variables declared in for loop are local to that block.
- ✗
Inside the class
Why it's wrong here
Too broad; loop variable is local.
- ✗
Inside the entire method
Why it's wrong here
Not accessible outside the loop.
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