Java 101: Packages organize classes and interfaces

Why reinvent the wheel? That cliche applies to software development where some developers frequently rewrite the same code for different programs. Two disadvantages with that approach are:

1. It wastes time
2. It introduces the potential for bugs in debugged code

As an alternative to rewriting the same code, many software development environments provide a library tool that organizes frequently used code. Once developers finish debugging some reusable code, they use the tool to store that code in a library—one or more files that contain frequently used code for use in various programs. During program-building, the compiler or library tool accesses the library to connect the program’s library-referenced code to the program.

To read this article in full, please click here