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Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.
Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.
JUnit and NUnit are open source unit testing frameworks; the former for Java applications, the latter for .Net programs. JUnit is a descendant of SUnit, a Smalltalk creation and great-grandaddy of ...
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