Java’s standard (pre-defined) annotation types. You’ll learn how to use each of these elements in your Java annotations. Using @interface to declare annotation types ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

In JDK 1.4, assertions were introduced as a new mechanism for testing and debugging assumptions about Java code. In essence, assertions are compilable entities that execute at runtime, assuming ...

Java bootcamps can teach you this popular programming language in just a few months. Explore Java coding bootcamps, including costs and target skills.

Java’s ternary conditional operator return The Java ternary operator must return a value. The statement evaluated in the body of the Java ternary operator cannot return void. For example, the ...

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...

Let me show you how. First, we’re going to install Java 17 and Java 18, so you can see how the switching is done. To install Java 17, open a terminal window and issue this command: ...

For loops in Java are extremely powerful and lend themselves to many different coding applications. In this post, we will explain how to use them, and look at more advanced concepts such as labelling.