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Vector API is a new feature introduced in Java 18 that provides a set of vectorized operations that can be used to accelerate mathematical computations. Vector API enables developers to write code that can take advantage of the latest hardware, including CPUs with vector units and GPUs. Vector API provides a set of classes and interfaces that can be used to write code that performs vectorized operations on arrays of numeric data. The API supports operations such as addition, multiplication, and division, as well as more complex operations such as dot products, norms, and reductions. The API also includes support for complex numbers and floating-point operations. Here's an example of how Vector API can be used to accelerate a simple mathematical operation: import jdk.incubator.vector.*; public class VectorExample {     public static void main(String[] args) {         float[] a = {1.0f, 2.0f, 3.0f, 4.0f};         float[] b = {5.0f, 6.0f, 7...

Pattern Matching for switch Statements is a new feature introduced in Java 18 that allows developers to use patterns as case labels in switch statements. This feature was first introduced as a preview feature in Java 14 and was further improved in Java 15 and Java 17 before being made a permanent feature in Java 18. Prior to Java 18, switch statements could only use primitive types, enums, and strings as case labels. With pattern matching, developers can now use patterns, which are more flexible and powerful than simple literals. Patterns allow developers to match against more complex conditions, such as types, values, and structures. Here's an example of how pattern matching works: public String getAnimalSound(Animal animal) {     String sound = switch (animal) {         case Cat c -> "Meow";         case Dog d -> "Woof";         case Lion l -> "Roar";         default -> throw new Ille...