Tell us about the features of the Java language.

Java is an object-oriented, platform-independent programming language. Key features:

• Platform independence (Write Once, Run Anywhere - WORA): Thanks to the JVM (Java Virtual Machine), compiled bytecode can run on any platform that has a JVM.
• Object-oriented: All of Java is based on the concept of objects. It supports encapsulation, inheritance, and polymorphism.
• Strong typing: Implicit type conversions are limited, which helps detect errors at compile time.
• Automatic memory management: JVM includes a garbage collector that automatically frees unused memory, relieving developers from manual management.
• Multithreading: Built-in support for multithreading allows writing applications that perform multiple tasks simultaneously.
• Security: Java was originally developed with security in mind. It has built-in mechanisms such as the Security Manager, bytecode verifier, and the absence of explicit pointers.
• High performance: Although Java is interpreted by the JVM, there is a JIT (Just-In-Time) compiler that dynamically compiles frequently used bytecode into machine code, increasing performance.
• Simple and familiar syntax: Java's syntax resembles C++, but without complex or rarely used features such as multiple inheritance of implementation (only multiple inheritance of interfaces is supported) and explicit pointers.
• Large standard library (Java API): Provides a wide range of ready-made classes and interfaces for solving typical tasks such as working with collections, networking, input-output, etc.

Example of a simple class:

// Simple class Example
public class Example {

    private String message = "Hello, world!"; // Private field

    // Method to display the message
    public void displayMessage() {
        System.out.println(message); // Output to console
    }

    // Entry point of the program
    public static void main(String[] args) {
        Example exampleObject = new Example(); // Creating an object
        exampleObject.displayMessage(); // Calling the method
    }
}