- Creating JSON documents from java classes using gson
- setScale (BigDecimal)
- getContentResolver (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- FileReader (java.io)
A specialized Reader that reads from a file in the file system. All read
requests made by calling me
- OutputStream (java.io)
A writable sink for bytes.Most clients will use output streams that write data
to the file system (
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
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