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How to use classes from .jar files?
...s, but I still can't find a solution for my problem. I need to use a class from a jar file called jtwitter.jar, I downloaded the file, and tried executing it (I found out yesterday that .jar files can be executed by double clicking on them) and Vista gave me an error saying "Failed to load Main-Clas...
How do I get the picture size with PIL?
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from PIL import Image
im = Image.open('whatever.png')
width, height = im.size
According to the documentation.
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What happens to my apps after my developer account membership expires? [closed]
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Your apps will be removed from the app store, although it won't happen instantly. This is what an Apple sales rep told me a few months ago.
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How to use filter, map, and reduce in Python 3
...s in What's New In Python 3.0. You should read it thoroughly when you move from 2.x to 3.x since a lot has been changed.
The whole answer here are quotes from the documentation.
Views And Iterators Instead Of Lists
Some well-known APIs no longer return lists:
[...]
map() and filter() return iterat...
How do I copy a version of a single file from one git branch to another?
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Run this from the branch where you want the file to end up:
git checkout otherbranch myfile.txt
General formulas:
git checkout <commit_hash> <relative_path_to_file_or_dir>
git checkout <remote_name>/<branch_na...
What does Serializable mean?
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Serialization is persisting an object from memory to a sequence of bits, for instance for saving onto the disk. Deserialization is the opposite - reading data from the disk to hydrate/create an object.
In the context of your question, it is an interface that if ...
How do I pass variables and data from PHP to JavaScript?
...PHP, and I need its value in my JavaScript code. How can I get my variable from PHP to JavaScript?
19 Answers
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Accessing localhost:port from Android emulator
... by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:<hostport>".
If your emulator must access the internet through a proxy server, you can configure a custom HTTP proxy from the emulator's Extended controls sc...
Difference between volatile and synchronized in Java
...ivate copies of main memory.
Using synchronized prevents any other thread from obtaining the monitor (or lock) for the same object, thereby preventing all code blocks protected by synchronization on the same object from executing concurrently. Synchronization also creates a "happens-before" memory...
How to remove a field completely from a MongoDB document?
Suppose this is a document. How do I remove " words " completely from all the documents in this collection? I want all documents to be without " words ":
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