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

public class Box<T> { private T t; public void set(T t) { this.t = t; } public T get() { return t; } } After type erasure, the Java compiler converts the class to something like this: ...

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Obviously that doesn't compile, but I hate to make a file FooType.java with just the 5 lines above in it. Obviously that doesn't compile, but I hate to make a file FooType.java with just the 5 ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...