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Print “hello world” every X seconds

...any other method Timer timer = new Timer(); timer.schedule(new SayHello(), 0, 5000); share | improve this answer | follow | ...
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How to vertically align an image inside a div

... +550 The only (and the best cross-browser) way as I know is to use an inline-block helper with height: 100% and vertical-align: middle on b...
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Resource interpreted as Document but transferred with MIME type application/zip

With Chrome 12.0.742.112, if I redirect with the following headers: 18 Answers 18 ...
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How to check for an undefined or null variable in JavaScript?

...n converted to a boolean, evaluates to false. So, if you don't care about 0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact: value = obj.prop || defaultValue which means "if obj has the property prop, assign it to value, otherwise assign the default value defa...
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Converting double to string

... | edited Mar 31 '16 at 10:20 Sнаđошƒаӽ 11.6k1111 gold badges6060 silver badges8383 bronze badges ...
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Case insensitive XPath contains() possible?

... This is for XPath 1.0. If your environment supports XPath 2.0, see here. Yes. Possible, but not beautiful. /html/body//text()[ contains( translate(., 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'test' ) ] This ...
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How can I enable or disable the GPS programmatically on Android?

...pp. – Edward Falk Nov 15 '12 at 22:30 1 Working fine in Android 2.3.6 but not working android 4.0...
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What are the undocumented features and limitations of the Windows FINDSTR command?

...eOffset: = The decimal byte offset of the start of the matching line, with 0 representing the 1st character of the 1st line. Only printed if /O option is specified. This is not the offset of the match within the line. It is the number of bytes from the beginning of the file to the beginning of the l...
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How to calculate an angle from three points? [closed]

... answered Jul 31 '09 at 8:05 Lance RobertsLance Roberts 21k2929 gold badges106106 silver badges128128 bronze badges ...
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List of all special characters that need to be escaped in a regex

... 10 Answers 10 Active ...