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Global variables in Java

... To define Global Variable you can make use of static Keyword public class Example { public static int a; public static int b; } now you can access a and b from anywhere by calling Example.a; Example.b; ...
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?

...turning a floating point value, the functions can return a sensible value for input values that lie outside the representable range of integers. Consider: If floor() returned an integer, what should floor(1.0e30) return? Now, while Python's integers are now arbitrary precision, it wasn't always th...
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How do you make lettered lists using markdown?

Markdown allows ordered lists using numbers. How can I instead get an ordered list using letters ? i.e. 5 Answers ...
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How do I add multiple arguments to my custom template filter in a django template?

...l your arguments into a single string using a comma to separate them. So for example, if you want a filter that checks if variable X is in the list [1,2,3,4] you will want a template filter that looks like this: {% if X|is_in:"1,2,3,4" %} Now we can create your templatetag like this: from djang...
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How can I programmatically check whether a keyboard is present in iOS app?

... …or take the easy way: When you enter a textField, it becomes first responder and the keyboard appears. You can check the status of the keyboard with [myTextField isFirstResponder]. If it returns YES, then the the keyboard i...
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How to rename a file using Python

... Use os.rename: import os os.rename('a.txt', 'b.kml') share | improve this answer | follow | ...
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What is ECMAScript?

...ript is a subset of ECMAScript. JavaScript is basically ECMAScript at its core but builds upon it. Languages such as ActionScript, JavaScript, JScript all use ECMAScript as its core. As a comparison, AS/JS/JScript are 3 different cars, but they all use the same engine... each of their exteriors is d...
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Do Google refresh tokens expire?

I have used the refresh token several times in just a short period for testing purposes, but I wonder whether Google refresh tokens ever expire? Can I use the same refresh token to get another access token again and again for a long period (a week or even months)? ...
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What does a tilde do when it precedes an expression?

I saw it in an answer, and I've never seen it before. 5 Answers 5 ...
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Is there a way of having git show lines added, lines changed and lines removed?

... You can use: git diff --numstat to get numerical diff information. As far as separating modification from an add and remove pair, --word-diff might help. You could try something like this: MOD_PATTERN='^.+(\[-|\{\+).*$' \ ADD_PATTERN='^\{\+.*\+\}$' \ REM_PATTERN='^\[-.*-\]$' \ gi...