Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...

Use Java assertions to test your assumptions about program correctness and check them in your code.

For example, if Java infers a type to be a String, it will not assigned that type to an int or a float later on in the code. int x = 10; x = "ten"; // Error: violation of strong typing in Java When ...

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

This Visual Studio Code for Java tutorial shows you how to install the Java extensions pack for VS Code, create a Java project and run a simple program.

I want to learn how to program in Java on my Mac. What’s the best way to get started? Java programming is a great thing to learn – and your Mac is the perfect place to get started. Java is by ...

This post explains how to use loops in Java. Learn for loops, while loops, do while, break, and continue. All without going loopy!

How to run a Java program using Command Prompt First things first, you will have to write the code that you want to run and save that as a Java executable file.

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 { ...