Can you list important built-in links and resources in Java that are used for developing and supporting applications?

In Java, the following built-in references and resources are important for developing and maintaining applications:

• Java Standard Library (JDK API) — a set of standard classes and interfaces, such as java.lang, java.util, java.io, java.net.
• Java API Documentation — the official documentation describing classes and methods.
• Javadoc — a tool for generating documentation from source code.
• Java Development Kit (JDK) — a development kit with a compiler and tools.
• Java Runtime Environment (JRE) — the environment for running Java applications.
• Android SDK — a set of tools and APIs for developing Android applications in Java.

Example of using the standard library:

import java.util.ArrayList;

ArrayList<String> list = new ArrayList<>();
list.add("Example");
System.out.println(list.get(0));