1Z0-811 What is Java Practice Question
A company wants to develop a Java application that can run on Windows, Linux, and macOS without any code changes. Which Java feature makes this possible?
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
✓
Platform Independence via JVM
Java achieves platform independence through the Java Virtual Machine (JVM), which interprets compiled bytecode. Option A is wrong because multithreading is a concurrency feature, not responsible for platform independence. Option C is wrong because garbage collection manages memory but does not enable platform independence. Option D is wrong because object-oriented programming is a paradigm, not responsible for cross-platform execution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Multithreading
Why it's wrong here
Multithreading enables concurrent execution but does not provide platform independence.
- ✓
Platform Independence via JVM
Why this is correct
The JVM allows bytecode to run on any device with a compatible JVM.
- ✗
Garbage Collection
Why it's wrong here
Garbage collection manages memory but does not enable platform independence.
- ✗
Object-Oriented Programming
Why it's wrong here
Object-oriented programming is a coding paradigm, not a cross-platform mechanism.
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