RFR: 8279795: Fix typo in BasicFileChooserUI: Constucts -> Constructs [v2]

[Alexey Ivanov]

> Fix the typo in the constructor for BasicFileChooserUI.DoubleClickListener: ‘Constucts’ → ‘Constructs’.
> Also fixed the typo in the parameter of the constructor: ‘the lsit’ → ‘the list’.
> 
> I also organised the imports which replaced all wildcard imports with specific class imports.

Alexey Ivanov has updated the pull request incrementally with one additional commit since the last revision:

  Add a blank line between java- and javax-package classes

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7030/files
  - new: https://git.openjdk.java.net/jdk/pull/7030/files/5b3e30f3..a705befd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7030&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7030&range=00-01

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7030.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7030/head:pull/7030

PR: https://git.openjdk.java.net/jdk/pull/7030