What is an abstract class in Java An abstract class is class

What is an abstract class in Java

Solution

What is an abstract class in Java

Answer:

An abstract class is class which cannot be instantiated

Explanation:

An abstract method is a method that has only declaration and doesn’t contain the definition.

An abstract class is a class which has one or more abstract method. These classes may not be instantiated, that is we cannot create objects for abstract classes they are implemented using subclasses. The class that extends the abstract class defines the abstract methods.

Example:

public abstract Greetings

{

            public abstract void welcomeMsg(); //this is an abstract method

}

//this is the class that inherits the abstract class and implements the abstract method

public class SayHi extends Greetings

{

//defining the abstract method

            public void welcomeMsg()

{      

         System.out.println(“Hello”);

}

}