- Reading from database using SQL prepared statement
- getExternalFilesDir (Context)
- setRequestProperty (URLConnection)
- getSystemService (Context)
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Enumeration (java.util)
A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- Base64 (org.apache.commons.codec.binary)
Provides Base64 encoding and decoding as defined by RFC 2045.This class
implements section 6.8. Base
- FileUtils (org.apache.commons.io)
General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
- Top 12 Jupyter Notebook extensions