Java Supplier interface tutorial. As you can see, the code for the class that implements Java’s Supplier interface is fairly simple. The only requirements are the class declaration and the ...

For an introduction to Java interfaces, including the difference between classes and interfaces, see my Java 101 tutorial Working with interfaces in Java. Nesting interfaces in classes.

See the Java 101 Java interfaces tutorial for a more in-depth introduction to using interfaces in your Java programs, including where and where not to use default, static, and private methods.

How to use Java’s Function interface. For this Java Function interface example, we will provide a single method named “apply” that takes an Integer as an argument, squares it and returns the result as ...

Learn about serialization in Java with our comprehensive tutorial. We provide examples to help you understand how serialization works. ... Java provides the Externalizable interface.

This is an in-depth java tutorial for beginners. ... This is the “Integrated Development Environment” or IDE: the interface used by developers to enter their code and call upon the JDK.