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How to make an array of arrays in Java

... 155 Like this: String[][] arrays = { array1, array2, array3, array4, array5 }; or String[][] a...
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What is a “symbol” in Julia?

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Set default CRAN mirror permanent in R

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how to convert binary string to decimal?

... 188 The parseInt function converts strings to numbers, and it takes a second argument specifying t...
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Are SVG parameters such as 'xmlns' and 'version' needed?

... 217 All user agents (browsers) ignore the version attribute, so you can always drop that. If you e...
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Django admin: how to sort by one of the custom list_display fields that has no database field

... 159 I loved Greg's solution to this problem, but I'd like to point that you can do the same thing ...
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How should I store GUID in MySQL tables?

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How can I format a decimal to always show 2 decimal places?

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+ operator for array in PHP?

...elements from the right-hand array will be ignored. So if you do $array1 = ['one', 'two', 'foo' => 'bar']; $array2 = ['three', 'four', 'five', 'foo' => 'baz']; print_r($array1 + $array2); You will get Array ( [0] => one // preserved from $array1 (left-hand array) ...
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Difference between staticmethod and classmethod

...The object instance, a, is implicitly passed as the first argument. a.foo(1) # executing foo(<__main__.A object at 0xb7dbef0c>,1) With classmethods, the class of the object instance is implicitly passed as the first argument instead of self. a.class_foo(1) # executing class_foo(<class...