The private String name; and private long amount; fields are inaccessible. More about Java interfaces What can you do with interfaces in your Java programs?

Definition: An interface in Java is a reference type that is similar to a class. It is a collection of abstract methods (methods without a body) and constant fields. Unlike classes, interfaces cannot ...

In Java 9, Interface is getting more enhanced and now more strengthen, Java 9 interface can declare private methods, keeping intact the feature of the default method introduced by Java 8.

By comparison, Java object allocation and construction are tied together (it is impossible to use an allocated but uninitialized object instance). If a Java class defines fields that are ...

Functional supplier interface in Java tutorial There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package ...

In the first part, we demonstrated Java multithreading (Multithreading in Java, January 2005, page 90). This article will show how Java can call other programming language functions using JNI (Java ...