Which statement is true about Java byte code?

Question

Options

• AIt can run on any platform.
• BIt can run on any platform only if it was compiled for that platform.
• CIt can run on any platform that has the Java Runtime Environment.
• DIt can run on any platform that has a Java compiler.
• EIt can run on any platform only if that platform has both the Java Runtime Environment and a Java compiler.

• C
  94% (17)
• D
  6% (1)

Explanation

Java bytecode is platform-independent compiled code that requires the Java Runtime Environment (JRE) to execute - the JRE contains the JVM (Java Virtual Machine), which interprets bytecode into machine-specific instructions at runtime, making C correct.

• A is wrong because "any platform" is too absolute - the platform must have the JRE installed.
• B is wrong because bytecode is not compiled for a specific platform; that's the whole point of Java's "compile once, run anywhere" design.
• D is wrong because a compiler (like javac) turns .java source into bytecode - it's not needed to run already-compiled bytecode.
• E is wrong because only the JRE is needed to run bytecode, not the compiler.

Memory tip: Think of the JRE as the "player" and bytecode as a "disc" - you need the player (JRE) to play the disc, not the recording studio (compiler).

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