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Does setting Java objects to null do anything anymore?

I was browsing some old books and found a copy of "Practical Java" by Peter Hagger. In the performance section, there is a recommendation to set object references to null when no longer needed. ...
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How to get an outline view in sublime texteditor?

... happens when I press ctrl-r. I have a php file open. Can I locate the command in a menu? Does this work without a plugin? karlthorwald – user89021 Feb 6 '10 at 3:34 6 ...
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Update Item to Revision vs Revert to Revision

I've started to use Subversion with TortoiseSVN. If I open up the log and right click on an old revision I see two options that sound like they roll back to an older version: "Update item to revision" and "Revert to this revision". ...
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In which case do you use the JPA @JoinTable annotation?

...ble or @JoinColumn Let's pretend that you have an entity named Project and another entity named Task and each project can have many tasks. You can design the database schema for this scenario in two ways. The first solution is to create a table named Project and another table named Task and ad...
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How to center a label text in WPF?

...text. To control the alignment you can use a TextBlock instead of a label and set the TextAlignment attribute to whatever you need. – Paul Stegler Sep 21 '13 at 7:20 ...
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Python - write() versus writelines() and concatenated strings

So I'm learning Python. I am going through the lessons and ran into a problem where I had to condense a great many target.write() into a single write() , while having a "\n" between each user input variable(the object of write() ). ...
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Redirect to Action in another controller

... One of them, lets call it Controller A , is in an Area called Admin and the other, lets call it Controller B , is not in any Area (I guess that means it's in the default Area ?). Controller B has an action method called Login . I have an action method in Controller A , which has...
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Mercurial (hg) commit only certain files

... You can specify the files on the command line, as tonfa writes: $ hg commit foo.c foo.h dir/ That just works and that's what I do all the time. You can also use the --include flag that you've found, and you can use it several times like this: $ hg commit -I ...
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How to tell which version of a gem a rails app is using

... In Rails 3 and Rails 4, use bundle show In Rails 2, rake gems will print out what gems, dependencies, and versions are installed, frozen, etc. share |...
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Java resource as file

... ClassLoader.getResourceAsStream and Class.getResourceAsStream are definitely the way to go for loading the resource data. However, I don't believe there's any way of "listing" the contents of an element of the classpath. In some cases this may be simply im...