If you want to extend any other class then you must choose to implement an interface instead of extending a class

Multiple inheritance is not possible in java for the case of a Class but for the case of inheritance it is possible

• Java doesn't support multiple inheritance(By extending two classes)
• Suppose we want to extend a parent class and assign its properties to its child class then -
• In this case we can't extend Adapter class as

"" class extends ,""      is not possible.