大约有 19,601 项符合查询结果(耗时:0.0441秒) [XML]

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Broadcast receiver for checking internet connection in android app

... ServiceManager { Context context; public ServiceManager(Context base) { context = base; } public boolean isNetworkAvailable() { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo =...
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How to compare two dates?

... the same tzinfo attribute, the common tzinfo attribute is ignored and the base datetimes are compared. If both comparands are aware and have different tzinfo attributes, the comparands are first adjusted by subtracting their UTC offsets (obtained from self.utcoffset())." – Vik...
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Creating an official github mirror

... Based on communicating with GitHub's support team, I found that GitHub currently offers no direct mechanism for a user to mirror repositories in this fashion. However, one can ask GitHub to install this service for repositor...
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Remove unwanted parts from strings in a column

.... If you are satisfied with the succinct and readable str accessor-based solutions above, you can stop here. However, if you are interested in faster, more performant alternatives, keep reading. Optimizing: List Comprehensions In some circumstances, list comprehensions should be favo...
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Are there best practices for (Java) package organization? [closed]

... modules. e.g. com.company.product.modulea Further break down could be based on layers in your software. But don't go overboard if you have only few classes in the package, then it makes sense to have everything in the package. e.g. com.company.product.module.web or com.company.product.module.ut...
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CSS table column autowidth

...m: td.last { width: 1px; white-space: nowrap; } Flexible, Class-Based Solution And a more flexible solution is creating a .fitwidth class and applying that to any columns you want to ensure their contents are fit on one line: td.fitwidth { width: 1px; white-space: nowrap; } A...
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Python, Matplotlib, subplot: How to set the axis range?

...s Rob suggests, the OO interface in matplotlib is preferred over the state-based pylab interface. "Although many examples use pylab, it is no longer recommended. For non-interactive plotting it is suggested to use pyplot to create the figures and then the OO interface for plotting." matplotlib.org/f...
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OSGi: What are the differences between Apache Felix and Apache Karaf?

...: Felix is just the OSGi core runtime. Karaf provides a "distribution" based on Felix by adding other features such as a console, an SSH remoting mechanism, a file deployer and more. In this diagram of the Karaf architecture, Felix (or other OSGi implementation - currently Equinox is also supp...
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Undo svn add without reverting local edits

...t for me. I ran the code as above (including the trailing period) from the base folder. Not sure if I'm missing something. – zzz Jan 20 '12 at 0:47 ...
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Negative weights using Dijkstra's Algorithm

...t Dijkstra's algorithm. The time complexity is O(V^2). Priority-queue/heap based implementation + NO re-entrance allowed, where re-entrance means a relaxed vertex can be pushed into the priority-queue again to be relaxed again later. Priority-queue/heap based implementation + re-entrance allowed. V...