- Making http post requests using okhttp
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- setContentView (Activity)
- startActivity (Activity)
- IOException (java.io)
Signals a general, I/O-related error. Error details may be specified when
calling the constructor, a
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
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