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Is SecureRandom thread safe?

...ead safe? That is, after initializing it, can access to the next random number be relied on to be thread safe? Examining the source code seems to show that it is, and this bug report seems to indicate that its lack of documentation as thread safe is a javadoc issue. Has anyone confirmed that it is...
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Convert an integer to a float number

... answered Oct 7 '13 at 16:44 zmbzmb 6,32133 gold badges3434 silver badges5151 bronze badges ...
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How to encode URL parameters?

...om/?username=unknown&password=unknown"; var encodedURL= "http://www.foobar.com/foo?imageurl=" + encodeURIComponent(myUrl); DEMO: http://jsfiddle.net/Lpv53/ share | improve this answer ...
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In C#, how can I create a TextReader object from a string (without writing to disk)

I'm using A Fast CSV Reader to parse some pasted text into a webpage. The Fast CSV reader requires a TextReader object, and all I have is a string. What's the best way to convert a string into a TextReader object on the fly? ...
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How do I create a list of random numbers without duplicates?

I tried using random.randint(0, 100) , but some numbers were the same. Is there a method/module to create a list unique random numbers? ...
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Plotting a list of (x, y) coordinates in python matplotlib

I have a list of pairs (a, b) that I would like to plot with matplotlib in python as actual x-y coordinates. Currently, it is making two plots, where the index of the list gives the x-coordinate, and the first plot's y values are the a s in the pairs and the second plot's y values are the b s ...
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COUNT DISTINCT with CONDITIONS

I want to count the number of distinct items in a column subject to a certain condition, for example if the table is like this: ...
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PHP parse/syntax errors; and how to solve them

... What are the syntax errors? PHP belongs to the C-style and imperative programming languages. It has rigid grammar rules, which it cannot recover from when encountering misplaced symbols or identifiers. It can't guess your coding intentions. Most importan...
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Accessing the index in 'for' loops?

... Using an additional state variable, such as an index variable (which you would normally use in languages such as C or PHP), is considered non-pythonic. The better option is to use the built-in function enumerate(), available in both Python 2 and 3: for i...
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What is code coverage and how do YOU measure it?

... Code coverage is a measurement of how many lines/blocks/arcs of your code are executed while the automated tests are running. Code coverage is collected by using a specialized tool to instrument the binaries to add tracing calls and run a full set of automated tests agains...