What is an abstract class?

An abstract class is a class that is partially implemented. It provides design convenience. An abstract class is made up of one or more abstract methods that are declared but left unimplemented. An abstract class may also contain non-abstract methods. Abstract classes cannot be instantiated, but they can be subclassed. When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class. However, if it does not, the subclass must also be declared abstract.

• Click here to get free master-ciw-enterprise-developer Master CIW Enterprise Developer exam practice questions.
• Click here to get free scbcd SCBCD exam practice questions.
• Become SUN SCDJWS certified.
• Pass SCJP in first attampt.
• Click here to download scjp-5-0 test study guide and practice question.
• Download free practice test for SUN SCMAD exam.
• Download free practice test for scwcd SCWCD exam.
• Get certified in first attempt download 310-035 - SCJP 2 simulation.
• Download free practice test for SUN SCJP 1.4 Upgrade exam.
• Click here to download CX310-055 test study guide and practice question.
• Best exam simulation SUN CX310-056 download free trial.
• Download free practice test for SUN SCJP 6.0 exam.
• Pass SUN CX310-066 - SCJP Upgrade

• Previous Entry: What is Regasm.exe?
• Next Entry: How to view the exception types provided by the .NET Framework?