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The project cannot be built until the build path errors are resolved.

While compiling an android project in eclipse 3.4.2, I am getting The project cannot be built until the build path errors are resolved. ...
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How can I use threading in Python?

I am trying to understand threading in Python. I've looked at the documentation and examples, but quite frankly, many examples are overly sophisticated and I'm having trouble understanding them. ...
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)

...ail when I must use each attribute: nonatomic , copy , strong , weak , and so on, for a declared property, and explain what each does? Some sort of example would be great also. I am using ARC. ...
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Determine the data types of a data frame's columns

I'm using R and have loaded data into a dataframe using read.csv() . How do I determine the data type of each column in the data frame? ...
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What is the best Java library to use for HTTP POST, GET etc.? [closed]

.... GetMethod method = new GetMethod(url); // Provide custom retry handler is necessary method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false)); try { // Execute the method. int statusCode = client.executeM...
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Android Studio: how to remove/update the “Created by” comment added to all new classes?

By default Android Studio automatically adds a header comment to all new classes, e.g. 9 Answers ...
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What is the minimum I have to do to create an RPM file?

...with only a couple of dependencies. It has a config file, /etc/foobar.conf and should be installed in /usr/bin/foobar. 9 A...
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Understanding Canvas and Surface concepts

I'm struggling to understand the process of drawing to SurfaceView and therefore the whole Surface / Canvas / Bitmap system, which is used in Android. ...
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Windows XP or later Windows: How can I run a batch file in the background with no window displayed?

...ly? Typically one batch file runs another synchronously with the call command, and the second one would share the first one's window. You can use start /b second.bat to launch a second batch file asynchronously from your first that shares your first one's window. If both batch files write to the ...
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Access lapply index names inside FUN

... n=names(x)) Here I use lapply over the indices of x, but also pass in x and the names of x. As you can see, the order of the function arguments can be anything - lapply will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specify y ...