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How do you return a JSON object from a Java Servlet

...haracterEncoding("UTF-8"); response.getWriter().write(json); } That's all. See also: How to use Servlets and Ajax? What is the correct JSON content type? share | improve this answer ...
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for each loop in Objective-C for accessing NSMutable dictionary

... I was wondering, should'nt it have been: for (NSString* key in [xyz allKeys]) ?? Or does it not really matter. – FlowUI. SimpleUITesting.com Apr 2 '12 at 4:23 ...
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How to print a float with 2 decimal places in Java?

...lNumber)); Another one is to construct it using the #.## format. I find all formatting options less readable than calling the formatting methods, but that's a matter of preference. share | improv...
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Dropping Unique constraint from MySQL table

... out the name of the index. The name of the index is stored in the column called key_name in the results of that query. Then you can use DROP INDEX: DROP INDEX index_name ON tbl_name or the ALTER TABLE syntax: ALTER TABLE tbl_name DROP INDEX index_name ...
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How to prevent open last projects when intellij idea start

...actual path may vary depending upon which version of IntelliJ you have installed eg. IntelliJIdea2016.1/ IntelliJIdea2016.2/ IntelliJIdea2016.3/ share | improve this answer | ...
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How to implement infinity in Java?

...sing integer math for a reason. If so, you can get a result that's functionally nearly the same as POSITIVE_INFINITY by using the MAX_VALUE field of the Integer class: Integer myInf = Integer.MAX_VALUE; (And for NEGATIVE_INFINITY you could use MIN_VALUE.) There will of course be some functional d...
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How to convert a number to string and vice versa in C++

...o-number conversion and vice-versa are built in into the standard library. All the following functions are present in <string> (as per paragraph 21.5). string to numeric float stof(const string& str, size_t *idx = 0); double stod(const string& str, size_t *id...
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How can I view array structure in JavaScript with alert()?

...t language spec, so you shouldn't rely on the JSON object being present in all browsers, but for debugging purposes it's incredibly useful. I tend to use the jQuery-json plugin as follows: alert( $.toJSON(myArray) ); This prints the array in a format like [5, 6, 7, 11] However, for debugging ...
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How do I make a text input non-editable?

... or readonly="readonly" if you like it being all XML-y, see Stephan Muller's example below :) – Algy Taylor Feb 19 '14 at 11:18 ...
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Shortcut to create properties in Visual Studio?

I have seen some people creating properties in C# really fast, but how did they do it? 16 Answers ...