- Making http post requests using okhttp
- addToBackStack (FragmentTransaction)
- getApplicationContext (Context)
- onCreateOptionsMenu (Activity)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Date (java.sql)
A class which can consume and produce dates in SQL Date format. Dates are
represented in SQL as yyyy
- CountDownLatch (java.util.concurrent)
A synchronization aid that allows one or more threads to wait until a set of
operations being perfor
- Window (java.awt)
A Window object is a top-level window with no borders and no menubar. The
default layout for a windo
- Kernel (java.awt.image)
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