Which tool compiles Java source into bytecode?

Which tool compiles Java source into bytecode?

• A. javac
• B. gcc
• C. python
• D. make

Answer: (A)

When you want Java code to run on the Java Virtual Machine, you need a compiler that translates Java source into the bytecode the JVM understands. The Java compiler, typically invoked as javac, reads .java files and produces .class files that contain Java bytecode. This bytecode is what the JVM executes, enabling platform-independent running of Java programs. The other tools have different purposes: gcc compiles C/C++ into native machine code, Python is an interpreter (and optionally can generate its own bytecode, not Java bytecode), and make is a build automation tool that orchestrates compilation but does not itself generate bytecode.

When you want Java code to run on the Java Virtual Machine, you need a compiler that translates Java source into the bytecode the JVM understands. The Java compiler, typically invoked as javac, reads .java files and produces .class files that contain Java bytecode. This bytecode is what the JVM executes, enabling platform-independent running of Java programs. The other tools have different purposes: gcc compiles C/C++ into native machine code, Python is an interpreter (and optionally can generate its own bytecode, not Java bytecode), and make is a build automation tool that orchestrates compilation but does not itself generate bytecode.