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Saving an Object (Data persistence)

... You could use the pickle module in the standard library. Here's an elementary application of it to your example: import pickle class Company(object): def __init__(self, name, value): self.name = name self.value = value with open('company_data....
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Difference between Activity and FragmentActivity

I was working on fragments and came across two things Activity and FragmentActivity which are used several times. I want to know that is there any difference between these two, because when I changed Activity with FragmentActivity , it had no effect on the app. ...
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How can I find the length of a number?

...34567; x.toString().length; This process will also work forFloat Number and for Exponential number also. share | improve this answer | follow | ...
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How to check for an undefined or null variable in JavaScript?

...xistingObj.someUndefProperty. An undefined property doesn't yield an error and simply returns undefined, which, when converted to a boolean, evaluates to false. So, if you don't care about 0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact: value = obj.prop || de...
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What is the difference between Reader and InputStream?

What is the difference between Reader and InputStream? And when to use what? If I can use Reader for reading characters why I will use inputstream, I guess to read objects? ...
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Fast way to get image dimensions (not filesize)

I'm looking for a fast way to get the height and width of an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obv...
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Calculate last day of month in JavaScript

...efox 2.0.0.17: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Firefox 3.0.3: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Google Chrome 0.2.149.30: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Safari for Windows 3.1.2: Thu ...
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What is the difference between Culture and UICulture?

...someone give me a bit more information on the difference between Culture and UICulture within the .NET framework? What they do and when to use what? ...
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What is the id( ) function used for?

I read the Python 2 docs and noticed the id() function: 13 Answers 13 ...
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Eclipse secure storage

... file containing the password with -eclipse.password, see Eclipse SDK Help and Bug 241223. The complete procedure is as follows (this is on Linux, on Windows it should work as well if you change the paths): Exit Eclipse Delete the directory ~/.eclipse/org.eclipse.equinox.security Create a text fi...