Miscellaneous Features

Guides

Byte, Short, and Void Classes
Bytes and shorts are accommodated as wrapped numbers by adding new classes Byte and Short. The abstract class Number gets two new concrete methods: byteValue and shortValue; the default implementations of these use intValue method. Also includes a new class Void that is an uninstantiable placeholder class.

BigInteger and BigDecimal Classes - BigIntegers are immutable arbitrary-precision integers, which provide analogs to all of Java's primitive integer operators, and all relevant static methods from java.lang.Math. Additionally, BigIntegers provide operations for modular arithmetic, GCD calculation, primality testing, prime generation, single-bit manipulation, and a few other odds and ends.
BigDecimals are immutable, arbitrary-precision signed decimal numbers, suitable for monetary calculations. BigDecimals provide operations for basic arithmetic, scale manipulation, comparison, format conversion and hashing.

The @deprecated Tag
Used within documentation comments to mark classes and members as "no-longer-preferred", and directs the developer to replacement classes and members.

Accessing Resource Files
APIs that provide a mechanism for locating resource files in a way that is independent of the location of the resources. For example, this mechanism can locate a resource file whether it is an applet loaded from the net using multiple HTTP connects, an applet loaded using JAR files, or a "library" installed in the CLASSPATH.

APPLET Tag
Enhancements to the <APPLET> tag defined in HTML. Loads applets in the applet viewer or a web browser.