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How do I efficiently iterate over each entry in a Java Map?
If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going through the map?
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How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?
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Using the standard CustomCreationConverter, I was struggling to work how to generate the correct type (Person or Employee), because in order to determine this you need to analyse the JSON and there is no built in way to do this using the...
Efficiency of purely functional programming
... Pippenger [1996], when comparing a Lisp system that is purely functional (and has strict evaluation semantics, not lazy) to one that can mutate data, an algorithm written for the impure Lisp that runs in O(n) can be translated to an algorithm in the pure Lisp that runs in O(n log n) time (based on ...
Finding current executable's path without /proc/self/exe
...ecutable or a name that was found using $PATH.
Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable before it is executed. In that case you can use getenv("_") to get it. However this is unreliable because not all shells do this, and it could be ...
How to get the concrete class name as a string? [duplicate]
...is a dict that maps a function for each type. transform gets that function and applies it to the parameter.
of course, it would be much better to use 'real' OOP
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Ruby array to string conversion
...','35','231'].join("', '")}'"
Some string interpolation to add the first and last single quote :P
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get an element's id
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@Rana - Yup, it's a DOM element property, and all specific elements inherit from the basic dom element, so they have the property :)
– Nick Craver♦
Sep 2 '10 at 0:59
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HttpServletRequest get JSON POST data [duplicate]
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Normaly you can GET and POST parameters in a servlet the same way:
request.getParameter("cmd");
But only if the POST data is encoded as key-value pairs of content type: "application/x-www-form-urlencoded" like when you use a standard HTML for...
How to get a list of file names in different lines
...ne, without the extra details supplied by ls -l . I looked at ls --help and didn't find a solution. I tried doing
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What does the 'u' symbol mean in front of string values? [duplicate]
Yes in short i would like to know why am I seeing a u in front of my keys and values.
2 Answers
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