Java Programming and Technical Programming Definition

Q. What is HashMap and Map?

A. Map is Interface and Hashmap is class that implements that.

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Map is interface.
HashMap is class it not allowed duplicates.
10 years agoHelpfull: Yes(0) No(0)

Java Other Question

Q. What is nested class?

A. If all the methods of a inner class is static then it is a nested class Q. What are different types of access modifiers?

A. public: Any thing declared as public can be accessed from anywhere. private: Any thing declared as private can't be seen outside of its class. protected: Any thing declared as protected can be accessed by classes in the same package and sub classes in the other packages. default modifier : Can be accessed only to classes in the same package.