What is bytecode What do you understand by JVM?

In general, bytecode is a code that lies between low-level and high-level language. The bytecode is not processed by the processor. It is processed by the Java Virtual Machine (JVM). The job of the JVM is to call all the required resources to compile the Java program and make the bytecode independent.

What is the relation between JVM and bytecode?

Bytecode is the compiled format for Java programs. Once a Java program has been converted to bytecode, it can be transferred across a network and executed by Java Virtual Machine (JVM). Bytecode files generally have a . class extension.

Does JVM generate bytecode?

Remember,JVM only works during Run Time means after the compilation of Source Code into Byte Code..but before that javac compiles the source code into byte code. JVM converts bytecode into corresponding machine code by JIT Compiler and Java Interpreter.

How does JVM works internally?

JVM(Java Virtual Machine) acts as a run-time engine to run Java applications. JVM is the one that actually calls the main method present in a java code. JVM is a part of JRE(Java Runtime Environment). Java applications are called WORA (Write Once Run Anywhere).

What does the robust feature in Java mean?

Robust. Java is robust as it is capable of handling run-time errors, supports automatic garbage collection and exception handling, and avoids explicit pointer concept. Java has a strong memory management system. It helps in eliminating errors as it checks the code during both compile and runtime.

Why is bytecode called bytecode?

The name bytecode stems from instruction sets that have one-byte opcodes followed by optional parameters.

Can bytecode run Java on any machine?

Answer: The Java compiler translates Java programs into a language called Java bytecode. Although bytecode is similar to machine language, it is not the machine language of any actual computer. A Java interpreter is used to run the compiled Java bytecode program.

Does JVM produce machine code?

Java Virtual Machine (JVM) is a engine that provides runtime environment to drive the Java Code or applications. It converts Java bytecode into machines language. JVM is a part of Java Runtime Environment (JRE). In other programming languages, the compiler produces machine code for a particular system.

What is the use of ClassLoader in Java?

Java ClassLoader is used to load the classes at run time. In other words, JVM performs the linking process at runtime. Classes are loaded into the JVM according to need. If a loaded class depends on another class, that class is loaded as well.