Question: Java What is the difference between a class and an interface 1.Classes have fields and methods and interfaces have only methods 2.Classes have only concrete

Java

What is the difference between a class and an interface

1.Classes have fields and methods and interfaces have only methods

2.Classes have only concrete methods and interfaces have abstract methods

3.Classes can have concrete or abstract methods and interfaces have only abstract methods

4. You can inherit from classes but not from interfaces

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