- Reading from database using SQL prepared statement
- getSystemService (Context)
- getResourceAsStream (ClassLoader)
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- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
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An abstraction for a native pointer data type. A Pointer instance represents, on
the Java side, a na
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
- BigInteger (java.math)
An immutable arbitrary-precision signed integer.FAST CRYPTOGRAPHY
This implementation is efficient f
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A controller for the selection of SelectableChannel objects. Selectable channels
can be registered w
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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