Question 161 of 481
1Z0-811 Exception Handling and Development Tools Practice Question
Which command compiles a Java file and generates a .class file?
⚠ Common exam trap
Oracle often tests the distinction between the compiler (`javac`) and the launcher (`java`), as candidates may confuse compiling with running a program, especially when both commands are used in sequence.
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
✓
javac
The `javac` command is the Java compiler, which translates Java source code (`.java` files) into bytecode stored in `.class` files. This is the standard compilation step in the Java development process, as defined by the Java SE specification.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
jar
Why it's wrong here
jar creates or extracts JAR archives.
- ✗
javadoc
Why it's wrong here
javadoc generates documentation from source code.
- ✗
java
Why it's wrong here
java runs .class files, not compiles them.
- ✓
javac
Why this is correct
javac compiles .java files to .class files.
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Last reviewed: Jun 30, 2026
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