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

In Classes and objects in Java, you learned how to declare static fields and static methods as members of a class, and in Class and object initialization in Java, you learned how to declare static ...

The agent class above exposes a statically available method for accessing Instrumentation.getObjectSize(Object). The next code listing demonstrates a simple ‘application’ that makes use of it.

After compiling the source code (a .java file), the compiler generates intermediate object code called bytecode which is a .class file. Bytecode is not the same as machine code.

Java’s Scanner String input method To take String input from the user with Java’s Scanner class, just follow these steps Import java.util.*; to make Java’s Scanner class available Use the new keyword ...

With JDK 8 Java adds full JavaScript support plus some awesome extensions with Project Nashorn. In this article JavaScript expert Oliver Zeigermann explains the hows and the why's.

Java 25 introduces Compact Object Headers (JEP 519), delivering up to 30% CPU savings and reduced memory usage for applications with small objects. This user-friendly feature compresses object ...

The Java Serialization API provides a standard mechanism for developers to handle object serialization. For example, say you have a “Person” class in Java that contains fields containing an ...

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more.