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Built in Annotations Java

Java provides a variety of built-in annotations that serve different purposes. These annotations are metadata tags that can be applied to classes, methods, fields, and other elements in your code. They do not alter the functionality of the code but provide additional information to the compiler and developers.

Some of the most commonly used built-in annotations include:

@Override: This annotation indicates that a method is intended to override a method in a superclass. It helps the compiler catch errors if the method does not actually override any method.
@Deprecated: This annotation marks a method or class as deprecated, signaling that it should no longer be used. The compiler can issue warnings if deprecated elements are used.
@SuppressWarnings: This annotation instructs the compiler to suppress specific warnings that it would normally generate.
@FunctionalInterface: This annotation indicates that an interface is intended to be a functional interface, which means it has exactly one abstract method.

These annotations enhance code readability and maintainability by providing clear information about the intended use of classes and methods ²³.

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