The 'Cannot find symbol' error in Java occurs due to typos and missing import statements. Follow these suggestions to fix it successfully.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Within Java, dynamic-loading is typically achieved by calling the forName method on the class java.lang.Class; however, when Class.forName is called from within an Extension, strange errors can occur.