Answers for "abstract classes tutorial java"

2

Can abstract class have constructor in java

In Java, Abstract classes can have constructors even when they are only called from their concrete subclasses.
Posted by: Guest on March-31-2022
1

how to create object of abstract class in java

We cannot create objects of an abstract class. To implement features of an abstract class, we inherit subclasses from it and create objects of the subclass. A subclass must override all abstract methods of an abstract class. However, if the subclass is declared abstract, it's not mandatory to override abstract methods.
Posted by: Guest on December-30-2021
0

abstract class java

Abstract classes have some special features:

it's impossible to create an instance of an abstract class;
an abstract class can contain abstract methods that must be implemented in non-abstract subclasses;
it can contain fields and non-abstract methods (including static);
an abstract class can extend another class, including abstract;
it can contain a constructor.
Posted by: Guest on January-30-2022

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