Can I use deprecated classes?

  1. Will using deprecated classes cause severe problems to the program?

  2. What is the meaning of deprecated?

  3. Can I still work with deprecated classes?

An example for it is the ProgressDialog view in Android. It deprecated from API 26 and the replacement is the ProgressBar view. What happens if I will still use the ProgressDialog? It is extremely comfortable and exactly what I was aiming for.


From the documentation:

A program element annotated @Deprecated is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists. Compilers warn when a deprecated program element is used or overridden in non-deprecated code.

So you can use some deprecated methods but it won’t be the best practice because there are better alternative exists(but in some cases this can even be dangerous)

Source: stackoverflow