- Making http post requests using okhttp
- getSystemService (Context)
- setContentView (Activity)
- onRequestPermissionsResult (Fragment)
- URLEncoder (java.net)
This class is used to encode a string using the format required by
application/x-www-form-urlencoded
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- LinkedHashMap (java.util)
LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- Modifier (javassist)
The Modifier class provides static methods and constants to decode class and
member access modifiers
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