Introduction To Java
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Introduction to Java: Wiki Edition
What is Java?
- Java is a language in which we can write programs.
- Java is a library. It's a set of code that's already been written, and which Java programmers can use to make their lives easier.
- Java is a system for running programs written in the Java language. When Java code is "compiled", rather than being transformed into machine code that can be run by the physical CPU in your personal computer, it's transformed into a machine code that the Java Virtual Machine can run. Thus anywhere the Java Virtual Machine runs, your Java code can run.