Contents [hide]
How do you deprecate in Java?
Starting with J2SE 5.0, you deprecate a class, method, or field by using the @Deprecated annotation. Additionally, you can use the @deprecated Javadoc tag tell developers what to use instead. Using the annotation causes the Java compiler to generate warnings when the deprecated class, method, or field is used.
What does @deprecated do in Java?
The @Deprecated annotation tells the compiler that a method, class, or field is deprecated and that it should generate a warning if someone tries to use it. That’s what a deprecated class or method is.
Do deprecated methods still work in Java?
You can still use deprecated code without performance being changed, but the whole point of deprecating a method/class is to let users know there’s now a better way of using it, and that in a future release the deprecated code is likely to be removed.
What happens when you deprecate a method in Java?
Additionally, you can use the @deprecated Javadoc tag tell developers what to use instead. Using the annotation causes the Java compiler to generate warnings when the deprecated class, method, or field is used.
When do you get deprecation warnings in Java?
Using the annotation causes the Java compiler to generate warnings when the deprecated class, method, or field is used. The compiler suppresses deprecation warnings if a deprecated item is used within an entity which itself is deprecated or is used within the same outermost class or is used in an entity that is annotated to suppress the warning.
When to use the @ deprecated annotation in Java?
Using the @Deprecated annotation to deprecate a class, method, or field ensures that all compilers will issue warnings when code uses that program element. In contrast, there is no guarantee that all compilers will always issue warnings based on the @deprecated Javadoc tag, though the Sun compilers currently do so.
When to use the @ deprecated tag in Javadoc?
Using the @deprecated Javadoc Tag. You can use the @deprecated tag to make Javadoc show a program element as deprecated. The @deprecated tag must be followed by a space or newline. In the paragraph following the @deprecated tag, explain why the item has been deprecated and suggest what to use instead.