Introduction To Java 11 Features

Exploring the Power of Java 11: A Comprehensive Guide to its Features with Working Examples.

Introduction:

Java has been a cornerstone of software development for decades, and with the release of Java 11, the language has evolved to provide even more powerful features and enhancements. In this blog post, we will dive into some of the exciting new additions in Java 11 and explore how they can improve your coding experience. We will provide working examples to help you understand and implement these features in your own projects. Let's get started!

1. Local Variable Type Inference:

One of the most anticipated features in Java 11 is the introduction of local variable type inference. It allows you to declare variables without explicitly specifying their types, relying on the compiler to infer the correct type based on the assigned value. This feature reduces boilerplate code and enhances readability. Take a look at this example:

var message = "Hello, World!"; // Compiler infers message as a String

System.out.println(message);

2. HTTP Client:

Java 11 introduced a new built-in HTTP client that supports both synchronous and asynchronous requests. This feature eliminates the need for third-party libraries and simplifies the process of making HTTP calls. Here's a basic example:

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

public class HttpClientExample {

    public static void main(String[] args) throws Exception {

        HttpClient client = HttpClient.newHttpClient();

        HttpRequest request = HttpRequest.newBuilder()

                .uri(URI.create("https://api.example.com/users"))

                .build();

        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());

    }

}

3. Enhanced String API:

Java 11 includes several enhancements to the String API, making string manipulation more efficient and convenient. Here are a few notable additions:

- `isBlank()` method: Checks if a string is empty or contains only whitespace.

- `lines()` method: Returns a stream of lines extracted from a multi-line string.

- `strip()` method: Removes leading and trailing whitespace.

- `repeat(int count)` method: Repeats a string a specified number of times.

String text = " Hello, World! ";

System.out.println(text.isBlank()); // false

System.out.println(text.strip()); // "Hello, World!"

System.out.println(text.repeat(3)); // " Hello, World! Hello, World! Hello, World!"

4. Single-File Source Execution:

Java 11 enables running a single-file Java source code directly using the `java` command, without the need for compiling and packaging into a JAR file. This feature simplifies quick prototyping and small script-like programs. Consider this example:

public class HelloWorld {

    public static void main(String[] args) {

        System.out.println("Hello, World!");

    }

}

Execute it using the command:

java HelloWorld.java

5. Improved Security and TLS 1.3 Support:

Java 11 enhances the security of your applications by providing support for Transport Layer Security (TLS) 1.3. This protocol ensures secure communication between client and server, offering improved performance and security features over its predecessors.

Conclusion:

Java 11 brings a wide range of exciting features and improvements that enhance developer productivity and make coding in Java more efficient. In this blog post, we covered some of the key features such as local variable type inference, the built-in HTTP client, enhanced String API, single-file source execution, and improved security with TLS 1.3 support. By leveraging these features with working examples, you can take full advantage of Java 

11's capabilities in your own projects. Upgrade to Java 11 today and unlock the power of these new features!

Remember, this is just a glimpse of what Java 11 has to offer. Explore the official Java documentation for more in-depth information on these features and additional enhancements. Happy coding!