What is the purpose of a default constructor?
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What is meant by inheritance and what are its advantages?
Is upper case in java?
Can java hashmap have duplicate keys?
What is meant by the value of a variable?
What are the different types of garbage collectors in java?
How to check if linked list contains loop in java?
I want my class to be developed in such a way that no other class (even derived class) can create its objects. Define how can I do so?
different between exception and error? explaim check and uncheck exception
Difference between collection, collection and collections in java?
There are 2 classes, 1 LandAnimal and another WaterAnimal. There is another class Animal which wants to have the properties of both LandAnimal and WaterAnimal. How will you design this situation?
Can we use return in constructor?
Java support what type of parameter passing ?