Demystifying Java Annotations: Usage and Practical Examples

Annotations in Java provide metadata about code and are used by the compiler and runtime. Java offers built-in annotations like `@Override` and `@Deprecated`, and you can also create custom annotations. Annotations help simplify configuration and provide additional information to the code.

Here’s an example of using the `@Override` annotation:

class Parent {
    void display() {
        System.out.println("Parent display");
    }
}

class Child extends Parent {
    @Override
    void display() {
        System.out.println("Child display");
    }
}
            

The `@Override` annotation ensures that the method is overriding the parent class method. Custom annotations can be used for tasks like validation and logging. Understanding annotations improves the readability and maintainability of your code.