Difference between Abstract Class and Interface Abstract ClassInterfaceIt contains both declaration and definition part.It contains only a declaration part.Multiple inheritance is not achieved by abstract class.Multiple inheritance is achieved by interface.It contain constructor.It does not contain constructor.Difference between Abstract Class and Interface in C# – GeeksforGeeks www.geeksforgeeks.org › difference-between-abstract-class-and-interface-i…
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4. Method Resolution. The fourth difference between abstract class and interface in Java is that abstract classes are slightly faster than the interface because the interface involves a search before calling any overridden method in Java.
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