Abstract classes and interfaces in Java serve fundamentally ... class when you need to implement mutable state. As an example, the Java Collections Framework includes the AbstractList class ...

Data members in inteface are always public. Data members in abstract class can be private, protected, etc. Methods in interface are by default abstract and public, java 8 can have body to the methods.

Java project using Interface and Abstract class using Employee and Manager in a store example. (Academic class project) 0 stars 13 forks Branches Tags Activity ...

Java interface can have public methods by default while abstract class can have any of public ... define default and static methods with implementation code. In the above example you can see that we ...

Interfaces, however, support multiple inheritances where abstract classes don't. Implementation is done similarly in Java. For example, using the keyword implements will make a Java interface, while ...

Interface can have public method only it it. Abstract can attend only on class at a time. Abstract class can extend from both abstact class and class. A class can extend only one abstract class.