We can find many examples of the Command pattern in the Java Development Kit, and in the Java ecosystem. One popular example is using the Runnable functional interface with the Thread class.

Recursive Java palindrome program. All of the Java recursion examples so far have dealt with numbers. But this example, the recursive Java palindrome checker program, deals with strings. Namely, it’s ...

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 ...

The Observable design pattern is used in many important Java APIs. One well-known example is a JButton that uses the ActionListener API to execute an action. In this example, we have an ...

Set up a Java program with a function to calculate depreciation. The important data items required for such a function are the estimated number of years the item will be in use (the "life" of the ...