Programs written in Java are compiled into Java Byte code, which is then interpreted by a special Java Interpreter for a specific platform. Actually, this Java interpreter is known as the Java Virtual Machine(JVM). The machine language for the Java Virtual Machine is called Java byte code.
The Java interpreter, when run on any machine, looks and acts like a “virtual” processor chip, hence the name JVM. The Java Virtual Machine is a software abstraction that runs on top of existing processors. It shields Java applications from the underlying operating system. The Java Virtual Machine is a software or hardware implementation of the Java Virtual Machine.
The Java Platform is made up of the JVM and Java APIs. The Java API (Application Programming Interface) are compiled code libraries that you can use in your programs. In other words, the Java API is a set of functions and variables that programmers can use in their programs.
The JVM performs following
JVM provides definitions for the:
Let’s understand the internal architecture of JVM. It contains a class loader, memory area, execution engine, etc.
Note: also read about the What is Java programming language
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Staying up to the mark is what defines me. Hi all! I’m Rabecca Fatima a keen learner, great enthusiast, ready to take new challenges as stepping stones towards flying colors.
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