Web Reference: Nov 20, 2014 ยท This allows developers to consider what parts of a class are to be exposed, under the Object Orientated goal known as the ' Open/Closed Principle '; that is, classes should be open for extension, but closed for modification. Jan 20, 2026 ยท Like C++, an abstract class can contain constructors in Java. And a constructor of an abstract class is called when an instance of an inherited class is created. To access the abstract class, it must be inherited from another class. Let's convert the Animal class we used in the Polymorphism chapter to an abstract class: Remember from the Inheritance chapter that we use the extends keyword to inherit from a class.
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Java Inherit Abstract Class Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
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Last Updated: April 7, 2026
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