Preloaded Java Packages

NameDescription
java.utilContains the collections framework, legacy collectin classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.regexClasses for matching character sequences against patters specified by regular expressions.
java.langProvides classes that are fundamental to the design of the Java programming language.
java.ioProvides for system input and output through data streams, serialization, and the file system.
java.mathProvides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arthmetic (BigDecimal).
java.sqlProvides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
java.netProvides the classes for implementing networking applications.
de.methodpark.pkit.facade.externalAdapter to access excel sheets.
java.util.regexClasses for matching character sequences against patters specified by regular expressions.
java.xml.parsersProvides classes allowing the processing of XML documents.
org.xml.saxProvides the classes and interfaces for the Simple API for XML (SAX) which is a component of the Java API for XML Processing.
org.w3c.domProvides the interfaces for the Document Object Model (DOM) which is a component API of the Java API for XML Processing.
javax.xml.xpathThis package provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation envirionment.
net.sf.mpxj.readerThis library provides a set of facilities to allow project information to be manipulated in Java and .Net. MPXJ supports a range of data formats: Microsoft Project Exchange (MPX), Microsoft Project (MPP,MPT), Microsoft Project Data Interchange (MSPDI XML), Microsoft Project Database (MPD), Planner (XML), Primavera (PM XML, XER, and database), and Asta Powerproject (PP, MDB).
org.apache.poi.ss.usemodel
HSSF is the POI Project's pure Java implementation of the Excel '97(-2007) file format. XSSF is the POI Project's pure Java implementation of the Excel 2007 OOXML (.xlsx) file format.

HSSF and XSSF provides ways to read spreadsheets create, modify, read and write XLS spreadsheets. They provide: low level structures for those with special needs, an eventmodel api for effecient read-only access, and a full usermodel api for creating, reading, and modifying XLS files.