- Creating JSON documents from java classes using gson
- setRequestProperty (URLConnection)
- startActivity (Activity)
- onRequestPermissionsResult (Fragment)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- FileReader (java.io)
A specialized Reader that reads from a file in the file system. All read
requests made by calling me
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
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