Start by reading the API doc for those two methods. It will be explained there.
http://docs.oracle.com/javase/8/docs/api/index.html
If you have questions about what is explained there, copy the...
Type: Posts; User: Norm
Start by reading the API doc for those two methods. It will be explained there.
http://docs.oracle.com/javase/8/docs/api/index.html
If you have questions about what is explained there, copy the...
Please copy the full text of the error message and paste it here so we can see the problem.