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Downloading a file from spring controllers

... @RequestMapping(value = "/files/{file_name}", method = RequestMethod.GET) public void getFile( @PathVariable("file_name") String fileName, HttpServletResponse response) { try { // get your file as InputStream InputStream is = ...; ...
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Append a Lists Contents to another List C#

... Here is my example: private List<int> m_machinePorts = new List<int>(); public List<int> machinePorts { get { return m_machinePorts; } } Init() { // Custom function to get available ethernet ports List<i...
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What is attr_accessor in Ruby?

I am having a hard time understanding attr_accessor in Ruby . Can someone explain this to me? 19 Answers ...
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iPhone : How to detect the end of slider drag?

...*)slider forEvent:(UIEvent*)event { UITouch *touchEvent = [[event allTouches] anyObject]; switch (touchEvent.phase) { case UITouchPhaseBegan: // handle drag began break; case UITouchPhaseMoved: // handle drag moved bre...
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Saving enum from select in Rails 4.1

...;/option> </select> Values went from "0" to "red" and now we're all set. If you're using a regular ol' rails text_field it's: f.select :color, Wine.colors.keys.to_a If you want to have clean human-readable attributes you can also do: f.select :color, Wine.colors.keys.map { |w| [w...
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What is the difference between MOV and LEA?

...reas MOV loads the actual value at that address. The purpose of LEA is to allow one to perform a non-trivial address calculation and store the result [for later usage] LEA ax, [BP+SI+5] ; Compute address of value MOV ax, [BP+SI+5] ; Load value at that address Where there are just constants invo...
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What is the difference between vmalloc and kmalloc?

...allocate memory during the handling of a system call, should I specify GFP_ATOMIC ? Is a system call executed in an atomic context? ...
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jQuery validate: How to add a rule for regular expression validation?

... || re.test(value); }, "Please check your input." ); now all you need to do to validate against any regex is this: $("#Textbox").rules("add", { regex: "^[a-zA-Z'.\\s]{1,40}$" }) Additionally, it looks like there is a file called additional-methods.js that contains the method "pa...
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How do I delete an exported environment variable?

Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src . During the installation, something went wrong. ...
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How to play a notification sound on websites?

.../div> Browser support <audio> (Modern browsers) <embed> (Fallback) Codes used MP3 for Chrome, Safari and Internet Explorer. OGG for Firefox and Opera. share | improve this answer...