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This is an example of Java inheritance with method overriding. First, we extend the Animal class to create a new Cat class. Next, we override the Animal class’s emitSound() method to get the ...
At JavaZone 2010 I will be giving a lightning talk on APIs that use dynamic subclasses. These APIs make it possible to do things in Java that seem like pure magic. Here are some ideas of what you ...
Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...
To explicitly extend a class, add the EXTENDS clause shown below: class y extends x; endclass; In this case, class Y extends the class X. Alternatively, Y is a subclass of X, and X is the parent class ...
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