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Java 8 in Anger (JavaOne)
The document summarizes some of the key new features and changes in Java 8. It discusses the removal of the JDBC-ODBC bridge and additions to JDBC 4.2. It also mentions new classes and methods added to packages for concurrency, networking, and XML processing. Enhancements to the HotSpot VM include hardware-accelerated AES encryption. Default methods and Java Mission Control 5.3 are also noted. The latter part provides an example application using new features like lambda expressions and streams to analyze sentiment in tweets.
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Java 8 in Anger (JavaOne)
- 1. Java 8 inAnger Trisha Gee (@trisha_gee) Developer & Technical Advocate, JetBrains With help from Justin Lee (@evanchooly), MongoDB #JavaOne
- 2. •The JDBC-ODBC Bridgehas been removed. •JDBC 4.2 introduces new features. •Java DB •JDK 8 includes Java DB 10.10. •Networking •The class java.net.URLPermission has been added. •In the class java.net.HttpURLConnection, if a security manager is installed, calls that request to open a connection require permission. •Concurrency •Classes and interfaces have been added to the java.util.concurrent package. •Methods have been added to the java.util.concurrent.ConcurrentHashMap class to support aggregate operations based on the newly added streams facility and lambda expressions. •Classes have been added to the java.util.concurrent.atomic package to support scalable updatable variables. •Methods have been added to the java.util.concurrent.ForkJoinPool class to support a common pool. •The java.util.concurrent.locks.StampedLock class has been added to provide a capability-based lock with three modes for controlling read/write access. •Java XML - JAXP •HotSpot •Hardware intrinsics were added to use Advanced Encryption Standard (AES). The UseAESand UseAESIntrinsics flags are available to enable the hardware-based AES intrinsics for Intel hardware. The hardware must be 2010 or newer Westmere hardware. For example, to enable hardware AES, use the following flags: -XX:+UseAES -XX:+UseAESIntrinsics To disable hardware AES use the following flags: -XX:-UseAES -XX:-UseAESIntrinsics •Removal of PermGen. •Default Methods in the Java Programming Language are supported by the byte code instructions for method invocation. •Java Mission Control 5.3 Release Notes •JDK 8 includes Java Mission Control 5.3. Java 8 has many new features
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- 9. Leader board: TopTweeters
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- 13. Mood: Happy, Sador Both?
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- 17. Mood: Are WeGetting Happier?
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- 20. Tweet Service: PublishingReal Twitter Data
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- 22. User Service: Extractingthe Twitter Handle
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- 24. Mood Service: FiguringOut the Tweet Mood
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- 26. What have welearnt?
- 27. What have welearnt? •How to use Streams to manipulate data •Where Lambdas might simplify your code •Basics of building a JavaFX UI
- 28. More Details 3 HourTutorial: Safari Books Online 3 Hour Tutorial: InformIT - 60% Discount
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