- Making http requests using okhttp
- getSystemService (Context)
- addToBackStack (FragmentTransaction)
- startActivity (Activity)
- IOException (java.io)
Signals a general, I/O-related error. Error details may be specified when
calling the constructor, a
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- UnknownHostException (java.net)
Thrown when a hostname can not be resolved.
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- TimeUnit (java.util.concurrent)
A TimeUnit represents time durations at a given unit of granularity and provides
utility methods to
- Filter (javax.servlet)
A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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