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Big-O for Eight Year Olds? [duplicate]
I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...
How to access array elements in a Django template?
I am getting an array arr passed to my Django template. I want to access individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array.
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Find rows that have the same value on a column in MySQL
In a [member] table, some rows have the same value for the email column.
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Character reading from file in Python
In a text file, there is a string "I don't like this".
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Python executable not finding libpython shared library
I am installing Python 2.7 on CentOS 5. I built and installed Python as follows
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Java8: Why is it forbidden to define a default method for a method from java.lang.Object
Default methods are a nice new tool in our Java toolbox. However, I tried to write an interface that defines a default version of the toString method. Java tells me that this is forbidden, since methods declared in java.lang.Object may not be default ed. Why is this the case?
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Android: How to stretch an image to the screen width while maintaining aspect ratio?
...it so that it fills the screen horizontally, and stretches vertically to maintain the aspect ratio of the image, on any screen size. Here is my (non-working) code. It stretches the image horizontally, but not vertically, so it is squashed...
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Changing .gitconfig location on Windows
By default on Windows Git places global .gitconfig in c:\documents and settings\user\
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How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
In the custom AuthenticationProvider from my spring project, I am trying read the list of authorities of the logged user, but I am facing the following error:
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How to sort a collection by date in MongoDB?
I am using MongoDB with Node.JS. I have a collection which contains a date and other rows. The date is a JavaScript Date object.
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