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Is every class in java is subclass of itself?

A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.


what is a class 5 finish for concrete?

A class 5 finish is meant for concrete exposed to the weather and/or harsh conditions.


What is meant by instancing a class?

The class can be considered a template to create objects. When you create an object, you create it on the basis of the specified class - the object is an instance of the class, and the act of creating the object is also known as "instantiating" the class.


Abstract method with example in java?

An abstract in java is used to specify that the class/function is not yet complete. When a class in declared as abstract it means that it is not meant to be instantiated (you can't create variables of that type). This is because they are meant to be more of a guideline for other classes. When a class extends an abstract class it must either define all of the abstract methods from the abstract class or it must also be declared as an abstract class itself.


Can abstract method be overriden?

An overridden method is one which has already been implemented in the parent class with the same signature but has again been coded in the current class for functionality requirements. An abstract method is one which has only been declared in a class and would have to be implemented by the class that extends this abstract class. The implementation for the method is not available in the class in which it is declared.