JDK1.6 features

1. JDK 1.6 change summary

2.  Collections Framework Enhancements
 XML and Web services support
 More Annotation types & More flexible
annotation processing
 Support for scripting languages
 JDBC 4.0 support
 Application client GUI enhancements for both
AWT and Swing
 Java compiler APIs accessible from programs

3. •What is new in the Collections ?
 Deque - a double ended queue, supporting element
insertion and removal at both ends. Extends the Queue
interface.
 BlockingDeque - a Deque with operations that wait for
the deque to become non-empty when retrieving an
element, and wait for space to become available in the
deque when storing an element. Extends both the
Deque and BlockingQueue interfaces. (This interface is
part of java.util.concurrent.)

4. •What is new in the Collections?(cont)
 NavigableMap - a SortedMap extended with navigation methods
returning the closest matches for given search targets. A
NavigableMap may be accessed and traversed in either
ascending or descending key order. This interface is intended to
supersede the SortedMap interface. ConcurrentNavigableMap - a
ConcurrentMap that is also a NavigableMap. (This interface is part
of java.util.concurrent.)
 The Arrays utility class now has methods copyOf and
copyOfRange that can efficiently resize, truncate, or copy
subarrays for arrays of all types.
Before:
int[] newArray = new int[newLength];
System.arraycopy(oldArray, 0, newArray, 0, oldArray.length);
After: int[] newArray = Arrays.copyOf(a, newLength);

5. •XML and Web services support
 Java SE 6 address the growth of Web services and
XML processing in the Java community including
support for
 Web Services client stack
 Streaming API for XML (StAX)
 Java Architecture for XML Binding (JAXB) 2.0
 Java API for XML-based Web services (JAX-WS) 2.0
Web services metadata
 XML digital signature API

6. More Annotation types & More flexible
annotation processing?
Annotations were in Java 5.0 allowing developers to embed
metadata in Java source code Java SE 6 includes additional
built-in annotation types and annotation-processing APIs
including:
 Web services metadata for the Java Platform (JSR 181)
 Common Annotations for the Java Platform (JSR 250)
 Pluggable Annotation Processing API (JSR 269)

7. Support for scripting languages?
Framework to connect Java programs to scripting
language interpreters (JSR 223)
Java SE 6 includes JSR 223: Scripting for the Java™
Platform API.This is a framework by which Java
Applications can "host" script engines.
Sun's implementation of Java SE 6 includes an
example script engine based on Mozilla
Rhino:JavaScript for Java
Support script: Ruby, groovy, javascript

8. •What is JDBC 4.0 support ?
Java SE 6 includes JDBC 4.0; designed to
improve ease of JDBC development
Simplified access to relational data sources
with utility classes
Use of generics and annotations
Addition of JDBC 4.0 wrapper pattern
Safe access to vendor-specific APIs
Automatic driver discovery
Enhanced connection management
New data types (including XML and SQL ROWID)

9. Application GUI Client APIs
 Java SE 6 enhances application GUI capabilities with changes to
both AWT and Swing AWT
Faster splash screens (using native code)
System tray support (icons & messages)
Access to browsers and other desktop application “helpers”
 Swing
Improved drag-and-drop support
Enhanced layout customization
Simplified multi-thread programming
Writing of GIF images

10. Java compiler APIs accessible from programs
 Java command-line compilers receive input from the file
system and report errors using a stream
 Java SE 6 allows the compiler to receive input and/or
send output to an abstraction of the file system
 Java programs may now specify compiler directives and
process compiler output (this feature was add mostly due
to software vendor requests)

11. ?