Let’s explore the main differences between interfaces and abstract classes with a Java code challenge. We have the code challenge below, or you can view the abstract classes vs. interfaces ...

We can not run the interface Java class but we can run abstract class in it contains the main() method. Note: According the Java7 specification the main difference between abstract class and interface ...

Some programming languages use abstract classes to achieve polymorphism, and to separate interface from implementation, but in Java you use interfaces for that. Remember, a Java class can only have 1 ...

In later version of Java Interfaces always contained only method declaration. We are not giving method definition in the interfaces because java did not allow multiple inheritance of classes. But in ...

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 ...

However, seasoned Java developers know that sometimes the simplest of language constructs can turn out to be the most powerful, as is the case with object models designed with abstract classes and ...

1) don't create object for interface & abstract . but we can use ananymous class. 2) interface only declare method. but abstract class both define(nomarl method) and ...