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Java String - See if a string contains only numbers and not letters

... | edited Jan 8 '15 at 13:34 unwichtich 12.9k22 gold badges4343 silver badges5959 bronze badges ...
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How do I efficiently iterate over each entry in a Java Map?

... 5153 Map<String, String> map = ... for (Map.Entry<String, String> entry : map.entrySet...
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What does the tilde (~) mean in my composer.json file?

...| edited Dec 7 '17 at 13:45 kenorb 105k4949 gold badges542542 silver badges577577 bronze badges answered...
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How to draw a rounded Rectangle on HTML Canvas?

... 50 The HTML5 canvas doesn't provide a method to draw a rectangle with rounded corners. How about ...
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Trying to understand CMTime and CMTimeMake

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How do I install an old version of Django on virtualenv?

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Following git-flow how should you handle a hotfix of an earlier release?

... 75 It seems that there is a concept of a "support" branch in git flow. This is used to add a hotfix...
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How to run a background task in a servlet based web application?

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Read a zipped file as a pandas DataFrame

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Regex to remove all (non numeric OR period)

I need for text like "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5 ...