1. WELCOME TO JAVA 7
Talk 11

2. JAVA 7
• Released
in July 2011.
• No
binary compatibility with Java 6.
• We
are now at 1.7.0_u45.
• Support
for Java 6 ended in February 2013.
• BlackBox
0.14 will be compiled on Java 7.

3. NEW LANGUAGE FEATURES
Project Coin
http://radar.oreilly.com/2011/09/java7-features.html

4. DIAMOND OPERATOR
Map<String, List<Trade>> trades = new TreeMap<>();!

5. STRINGS IN SWITCH
String status;!
...!
!
switch (status) {!
case “new”:!
newTrade(t);!
break;!
case “execute”:!
executeTrade(t);!
break;!
case “pending”:!
pendingTrade(t);!
}

6. AUTOMATIC RESOURCE
MANAGEMENT
try (FileOutputStream fos = new FileOutputStream("movies.txt");!
DataOutputStream dos = new DataOutputStream(fos)) {!
dos.writeUTF("Java 7 Block Buster");!
} catch (IOException e) {!
// log the exception!
}

7. MULTICATCH
try {!
methodThatThrowsThreeExceptions();!
} catch (ExceptionOne | ExceptionTwo | ExceptionThree e) {!
// log and deal with all Exceptions!
}

8. OTHER LAGUAGE
IMPROVEMENTS
• Numeric
• Binary
literals: 1_234_567!
literals: 0b1001001011

9. OTHER IMPROVEMENTS
• InvokeDynamic
Nashorn)
• Unicode
• NIO
6.0
2
• JDBC
4.1
bytecode (good for Groovy, JRuby, Project

10. DELAYED TO JAVA 8
• Modularization
• Annotations
• Project
on Java types
Lambda
• Swing Application
• Project
Framework
Nashorn (Javascript on the JVM)