Introduction to Java Bytecode You Didn’t Know You Needed
Understanding Java bytecode to become a better Java developer
Every Java developer is familiar with the role of JVM in the language’s ecosystem. However, most don’t understand how JVM works under the hood. While that knowledge is not necessary to become a Java developer, having a better understanding of JVM will help you to write better code because, then, you would know how every line of the code you write impacts the process that’s going on inside the JVM.
To understand how JVM works, though, you need to understand what Java Bytecode is. So, in this article series, I’m going to lead you through the ins and outs of Java bytecode and how it matters to the JVM when you finally run your program.
What is Java Bytecode?
If you have heard how Java raves about the platform independence of Java programs at one point in your programming life, you have Java bytecode to thank for it.
Java bytecode is the instruction set JVM uses to run your program. Since the bytecode generated for your program is independent of the platform it’s running on, as long as you have JVM to interpret the bytecode, you can run your program on any platform without an issue.
