Write piece of code? How to create interface, Abstract class? Create a new class which implements interface and Abstract class? If there is common method exist in interface & Abstract class

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Accepted Answer

Creating interface, abstract class, and implementing them in a new class with a common method

To create an interface in Java, use the 'interface' keyword and define the methods without implementation
To create an abstract class in Java, use the 'abstract' keyword before the class definition and can have both abstract and concrete methods
To implement an interface in a class, use the 'implements' keyword and provide implementation for all the methods defined in the interface
To extend an abstract class in a class, use the 'extends' keyword and provide implementation for all the abstract methods
If there is a common method in both the interface and abstract class, the class implementing them should provide a single implementation for that method

Write piece of code? How to create interface, Abstract class? Create a new class which implements interface and Abstract class? If there is common method exist in interface & Abstract class

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Write piece of code? How to create interface, Abstract class? Create a new class which implements interface and Abstract class? If there is common method exist in interface &amp; Abstract class

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Write piece of code? How to create interface, Abstract class? Create a new class which implements interface and Abstract class? If there is common method exist in interface & Abstract class