Java : Program Execution


Java is a high level programming language. To run a java program (.java file) first need to compile by javac compiler that convert java code to byte code (.class file). Machine language for JVM is byte code that is same for all type JVM machines (i.e OS). After running java command, JVM executes the byte code gennerated by compiler and produce output.

For Example : Byte code generated on windows machine can be run on Mac or Linux OS and vice versa.

Java program exceution

JVM makes java portable (write once, run anywhere) and platform independent. Because each operating system has different JVM, however the machine language is byte code output they produce after execution of byte code is same across all operating systems.

See Also: JDK, JRE, JIT,SDK, JVM Introduction

 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s