𝗔 𝗕𝗿𝗶𝗲𝗳 𝗢𝘃𝗲𝗿𝘃𝗶𝗲𝘄 𝗼𝗳 𝗝𝗮𝘃𝗮 𝟭.𝟴

Java 1.8, also known as Java 8, was a significant release in the Java programming language's history. Released on March 18, 2014, it brought several important features and enhancements to the platform. Let's explore some of the key highlights of Java 1.8:

𝟭. 𝗟𝗮𝗺𝗯𝗱𝗮 𝗘𝘅𝗽𝗿𝗲𝘀𝘀𝗶𝗼𝗻𝘀

One of the most eagerly awaited features of Java 8 was the introduction of lambda expressions, which provide a concise way to represent anonymous functions. Lambda expressions enable developers to write more expressive and readable code, especially when working with collections and functional interfaces.

List<String> names = Arrays.asList("John", "Alice", "Bob");
names.forEach(name -> System.out.println(name));

𝟮. 𝗦𝘁𝗿𝗲𝗮𝗺 𝗔𝗣𝗜

Java 8 introduced the Stream API, which allows for functional-style operations on streams of elements, such as filtering, mapping, and reducing. Streams provide a more declarative and expressive way to manipulate collections, making code more concise and readable.

List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);
int sum = numbers.stream().filter(n -> n % 2 == 0).mapToInt(n -> n).sum();

𝟯. 𝗗𝗲𝗳𝗮𝘂𝗹𝘁 𝗠𝗲𝘁𝗵𝗼𝗱𝘀

With Java 8, interfaces gained the ability to have default methods, which provide a way to add new methods to interfaces without breaking existing implementations. This feature was introduced to support evolving interfaces in libraries and frameworks.

interface Vehicle {
default void start() {
System.out.println("Vehicle started");
}
}

class Car implements Vehicle {
// No need to implement start() method
}

Car car = new Car();
car.start(); // Outputs: Vehicle started

𝟰. 𝗢𝗽𝘁𝗶𝗼𝗻𝗮𝗹 𝗖𝗹𝗮𝘀𝘀

Java 8 introduced the Optional class, which provides a way to represent optional values, i.e., values that may or may not be present. Optional helps in writing more robust and null-safe code, reducing the risk of NullPointerExceptions.

Optional<String> name = Optional.ofNullable(getName());
name.ifPresent(n -> System.out.println("Name: " + n));

𝗖𝗼𝗻𝗰𝗹𝘂𝘀𝗶𝗼𝗻

Java 1.8 brought several powerful features and enhancements that revolutionized Java development, making code more expressive, concise, and robust. Lambda expressions, the Stream API, default methods, and the Optional class are just a few examples of the many improvements introduced in Java 8, paving the way for modern Java programming practices.