Mumbai University > Information Technology > Sem 3 > Object Oriented Programming Methodology

Marks: 5M

Year: Dec 2013

• The output of java complier is not an executable code, rather it is a bytecode.
• Bytecode is a highly optimized set of instructions designed to be executed by the Java run-time system, which is called the Java Virtual Machine (JVM).
• JVM is a platform independent execution environment that converts Bytecode into machine codes and executes it.
• In a standard form, JVM is an interpreter for bytecode. Therefore, java programs are executed by JVM.
• Translating a Java program into bytecode helps makes it much easier to run a program in a wide variety of environments.
• The reason is straightforward: only the JVM needs to be implemented for each platform.
• The execution of every program is under the control of JVM, making Java secure.
• JVM enabling bytecode to be executed on any processor regardless of operating system. Hence making Java Platform Independent.