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Java URL encoding of query string parameters

... are represented by +, not %20, which is legitimately valid. The %20 is usually to be used to represent spaces in URI itself (the part before the URI-query string separator character ?), not in query string (the part after ?). Also note that there are three encode() methods. One without Charset as s...
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How do you write a migration to rename an ActiveRecord model and its table in Rails?

...ble_name end end I had to go and rename the model declaration file manually. Edit: In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this: class RenameOldTableToNewTable < ActiveRecord::Migration def change rena...
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How to get all selected values from ?

...ipt as many people do not use JQuery in their sites. From RobG How to get all selected values of a multiple select box using JavaScript?: function getSelectValues(select) { var result = []; var options = select && select.options; var opt; for (var i=0, iLen=options.length; i<...
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How can I remove all my changes in my SVN working directory?

...ctory, and it shows in svn status . But is there any way for me to remove all my changes in there and just get everything from the trunk using the command line? ...
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Stack, Static, and Heap in C++

...t understood very well these three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? Could I write an entire application without allocating variables in the heap? ...
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Significance of -pthread flag when compiling

...plied to both the compiling and linking stage while others don't use it at all and just pass -lpthread to the linking stage. ...
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What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each

... The access_token is what you need to call a protected resource (an API). In the Authorization Code flow there are 2 steps to get it: User must authenticate and returns a code to the API consumer (called the "Client"). The "client" of the API (usually your web s...
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Download File Using Javascript/jQuery

... A webpage cannot open a new tab automatically. To force the browser to download, get the server to send the pdf file with a nonsense MIME-type, such as application/x-please-download-me – Randy the Dev Sep 20 '10 at 7:55 ...
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How do I autoindent in Netbeans?

In eclipse you can click Ctrl + I at any line, and it'll automatically indent the line or group of lines according to the indentation scheme you chose in the settings. ...
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How do I convert a Ruby class name to a underscore-delimited symbol?

...ow can I programmatically turn a class name, FooBar , into a symbol, :foo_bar ? e.g. something like this, but that handles camel case properly? ...