Java: Introduction to Just-In-Time Compiler

In one of the previous blog posts this week around, we had briefly introduced Just-in-time compiler and shown a way to enable/disable the same to our Java readers. After you have written a Java program, the source language statements are compiled by the normal Java compiler to the bytecode. It should have been to the code that contains instructions that match a particular hardware platform’s processor. The bytecode is platform-independent and it can be sent to any platform and run on that platform.

The Java on any platform will interpret the compiled bytecode into instructions that is understandable by the particular processor. However, the virtual machine handles one bytecode instruction at a time. The JIT compiler comes thus with the virtual machine and is used optionally. It compiles the bytecode into platform-specific executable code that is immediately executed.

Using the Java JIT compiler at the particular system platform compiles the bytecode into the particular system code. Once the code has been recompiled by the JIT compiler, it will run more quickly thus increasing the speed of the computer or the program as a whole.

At SPEC INDIA, we have hands on experience in Java programming as we are working in this industry since more than two decades. We have successfully completed many complex projects on the Java platform. Feel free to ask if you have any queries at our email id, I will be happy to assist you.

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