COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The programs are all the same, but the machines they run on are different and the virtual machine acts as the interpreter.
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The virtual machine needs to be the same on each machine in order to run the bytecode.
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Compiling to bytecode means that it will run more efficiently on each system.
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None of the above
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Detailed explanation-1: -What is bytecode and why is it important to Java’s use for Internet programming? Bytecode is a highly optimized set of instructions that is executed by the Java Virtual Machine. Bytecode helps Java achieve both portability and security.
Detailed explanation-2: -Java Virtual Machine (or JVM) allows a computer to interpret or run Java programs. It acts as a compiler for generating machine code. All Java programs require a Runtime Environment. If you want Java apps to run at all, you’ll need a JVM (Java Virtual Machine).
Detailed explanation-3: -Answer: A Java program can be compiled once into a Java Bytecode program. The compiled program can then be run on any computer that has an interpreter for the Java virtual machine. Other languages have to be re-compiled for each platform on which they are going to run.
Detailed explanation-4: -Advantages of bytecode: Bytecode runs only when the interpreter is available. It runs on the Java virtual machine only. It gives flexibility by giving a quote ‘Write code once, run code anywhere’. It also saves a lot of time for a programmer.