abstract class in java with example
An abstract class is a class, that is declared as abstract. Abstract class contains 0 or more abstract methods. Abstract classes can not be instantiated but that can be sub classed. An abstract method is a methods that is declared without any implementation. Like this, 1 2 3 abstract class Car { abstract void show (); } • A class with abstract methods is called abstract class. The both abstract method and abstract class must be declared with abstract. • In case where you want to use implementation inheritance then it is usually provided by an abstract base class. Abstract classes are excellent candidates inside of application frameworks. • Abstract classes let you define some default behavior and force sub-classes to provide any specific behavior. Here is the abstract class example with abstract methods as well as concrete methods. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1