The @Deprecated annotation is a standard Java annotation that is used to indicate that a particular class, method, or field is no longer recommended for use.

When you annotate an element with @Deprecated, you are signaling to other developers that the element should no longer be used, and that it may be removed in future versions of the software.

Here is an example of how to use the @Deprecated annotation:

public class MyClass {
  
  /**
   * @deprecated This method is no longer recommended for use.
   */
  @Deprecated
  public void myDeprecatedMethod() {
    // method body
  }
  
}

In this example, the myDeprecatedMethod() method is annotated with @Deprecated. The Javadoc comment associated with the method also includes the @deprecated tag, along with a message that explains why the method is deprecated.

When a developer attempts to use a method, class, or field that has been marked as @Deprecated, they will receive a warning at compile time indicating that the element they are using is no longer recommended. This warning can help developers avoid using deprecated elements and move to new and improved alternatives.