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Emacs Java

Not sure if and when I will get back to doing Java development (so many more interesting languages), but I started my Java career with Emacs…

Java Mode Tweaks

The high school students that I mentor use Eclipse, and the default style for it is Tabs, so I make an exception to my normal rule:

(use-package java-mode
  :init (add-hook 'java-mode-hook (lambda ()
                                    (setq c-basic-offset 4
                                          tab-width 4
                                          indent-tabs-mode t))))

Hook up the smartparens to Java:

(use-package smartparens
  :ensure t
  :init (add-hook 'java-mode-hook 'smartparens-mode))

A nice collection of stealable Java snippets:

(use-package java-snippets
  :ensure t)

Enhanced Tags functionality for Java:

(use-package jtags
  :ensure t
  :init (add-hook 'java-mode-hook 'jtags-mode))

Other Ideas

If Eclim isn’t complete enough, I may want to think about:

  • Turn on semantic mode for Java source code
  • Deal with Java Imports using this package
  • Run java, and then use JDB to connect: 
    java -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=y

Technical Artifacts

Allowing us to easily load these settings:

(provide 'init-java)

Before you can build this on a new system, make sure that you put the cursor over any of these properties, and hit: C-c C-c