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JDK 7 Support in NetBeans IDE 7.0

In the upcoming NetBeans IDE 7.0, the user will be able to select JDK 7 as a project's target platform. If this is done, the built-in parser starts using the new compiler (no red underlines for new javac features) and the following set of IDE features are enabled:

  • Strings in switch
  • Diamond operator (new LinkedList<>())
  • java.util.Objects
  • JSR 292 (Exotic identifiers)
  • Multicatch
  • Automatic resource management
  • New parser

Details on each of the above are found below:

Strings in switch

  • code completion updated
  • hint converting a cascade of if-elses to switch

File:Switch-screenshot.png

Diamond operator (new LinkedList<>())

  • warning when the diamond operator is not used and could be, includes fix to remove the superfluous bounds
  • tooltip in hyperlink (Ctrl-point to the identifier) shows inferred bounds

File:Diamon-screenshot.png

java.util.Objects

  • equals and hashcode generator (Alt-Insert, "equals() and hashCode()") uses java.util.Objects.equals/hashCode if available

JSR 292 (Exotic identifiers)

  • exotic identifiers supported in semantic highlighting, mark occurrences and Go to Declaration
  • suggestion to convert an integer constant to a different radix can also convert to binary literal

Multicatch

  • code completion works in the multicatch variable declaration
  • hint to join multiple catches into one multicatch if the handling code is the same
  • fix for the error if the multicatch variable is not final

File:Multicatch-screenshot.png

Automatic resource management

  • convert to ARM hint

File:Arm-screenshot.png

New parser

As mentioned, the built-in parser recognizes the new syntax. In the following screenshot, all the hints from the previous screenshots have been applied to yield the final result:

File:After-screenshot.png

From http://wiki.netbeans.org/NewAndNoteworthyNB70

 

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