Phases of a Java Program

1. Start by writing your java source code in an Editor software or any IDE (Integrated Development Environment) (ex. notepad, IDE like Eclipse and NetBeans)

2. Save your java source code with filename extension java (ex.

3. Compile the .java source code resulting to bytecode with file extension name  .class

4. Bytecode will be Interpreted to run the program and see the output.

For practice, I’ll post the steps and instructions next week. This post is just to present the whole idea of how a java program is executed.
In my next post I’ll include recommended links about IDE software and where to download the java system.


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