What is difference between abstract and interface

Answer 1

Think of interface as a class with abstract methods only. Abstract means you declare it but don't implement it. In an interface it is true about every​ method.

Later when you are good in Java you will see that it the life is a bit more difficult.

Answer 2

Abstract class and interface both are used to achieve abstraction where we can declare the abstract methods. Abstract class and interface both can't be instantiated.
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The basic difference between them----->>>>
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(1) Abstract class doesn't support multiple inheritance &>😎<& Interface supports multiple inheritance.
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(2) The abstract keyword is used to declare abstract class.&<😎>The interface keyword is used to declare interface.
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(3) Abstract class can have final, non-final, static and non-static variables.&<😎>Interface has only static and final variables.
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