Since: API Level 1
package

java.util.jar

Interfaces

Pack200.PackerThe interface defining the API for converting a JAR file to an output stream in the Pack200 format. 
Pack200.UnpackerThe interface defining the API for converting a packed stream in the Pack200 format to a JAR file. 

Classes

AttributesThe Attributes class is used to store values for manifest entries. 
Attributes.NameThe name part of the name/value pairs constituting an attribute as defined by the specification of the JAR manifest. 
JarEntryRepresents a single file in a JAR archive together with the manifest attributes and digital signatures associated with it. 
JarFileJarFile is used to read jar entries and their associated data from jar files. 
JarInputStreamThe input stream from which the JAR file to be read may be fetched. 
JarOutputStreamThe JarOutputStream is used to write data in the JarFile format to an arbitrary output stream  
ManifestThe Manifest class is used to obtain attribute information for a JarFile and its entries. 
Pack200Class factory for Pack200.Packer and Pack200.Unpacker

Exceptions

JarExceptionThis runtime exception is thrown when a problem occurs while reading a JAR file.