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Using python “with” statement with try-except block

...: in case opening the file fails you will get a second exception in the finally clause because f is not bound. The equivalent old style code would be: try: f = open("file", "r") try: line = f.readline() finally: f.close() except IOError: <whatever> As you c...
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How do you clone a BufferedImage

...which has many bufferedimages in it, I want to create a new object copying all the bufferedimages into the new object, but these new images may be altered and i don't want the original object images to be altered by altering the new objects images. ...
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What does “Memory allocated at compile time” really mean?

... languages like C and C++, people often refer to static and dynamic memory allocation. I understand the concept but the phrase "All memory was allocated (reserved) during compile time" always confuses me. ...
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Remove scroll bar track from ScrollView in Android

...ch I want to use the entire width of the screen and be able to make (vertically) scrollable. So I've wrapped the WebView in a ScrollView in my layout XML, but no matter what I do I can't seem to be able to remove the scroll bar track from the right side of the scroll view. Even worse, I can't seem t...
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Crontab Day of the Week syntax

...day 5 - Fri Friday 6 - Sat Saturday 7 - Sun Sunday Graphically: ┌────────── minute (0 - 59) │ ┌──────── hour (0 - 23) │ │ ┌────── day of month (1 - 31) │ │ │ ┌──── month (1 - 12) │ │ │ │ ┌─...
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Ruby regular expression using variable name

...aracters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work: var = "Value|a|test" str = "a test Value" str.gsub( /#{var}/, 'foo' ) # => "foo foo foo" However, if your search string contains metacharacters and you do n...
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Should I use document.createDocumentFragment or document.createElement

...nt effectively disappears when you add it to the DOM. What happens is that all the child nodes of the document fragment are inserted at the location in the DOM where you insert the document fragment and the document fragment itself is not inserted. The fragment itself continues to exist but now has ...
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Inline code in org-mode

Markdown allows for embedded code . How can this be done in org-mode ? 2 Answers 2 ...
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HttpURLConnection timeout settings

... N.B. !!! you need to call setConnectTimeout before any of the methods that implicitly connect (basically all the methods that throw IllegalStateException if already connected). Ideally make setConnectTimeout (readTimeout) the first methods called....
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jQuery - Create hidden form element on the fly

What is the simplest way to dynamically create a hidden input form field using jQuery? 6 Answers ...