answerWhich of these packages contains abstract keyword?Optionsjava.langjava.iojava.utiljava.system
Question
answerWhich of these packages contains abstract keyword?Optionsjava.langjava.iojava.utiljava.system
Solution
The package that contains the abstract keyword is java.lang. This package provides classes that are fundamental to the design of the Java programming language. The abstract keyword itself is a non-access modifier, used for classes and methods, and it can't be used with variables. It means that the abstract class can't be instantiated, and if any class extends an abstract class, it must implement all its abstract methods (if any) or be declared abstract as well.
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