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Difference between margin and padding?

What exactly is the difference between margin and padding in CSS? It really doesn't seem to serve much purpose. Could you give me an example of where the differences lie (and why it is important to know the difference)? ...
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What is the purpose of class methods?

I'm teaching myself Python and my most recent lesson was that Python is not Java , and so I've just spent a while turning all my Class methods into functions. ...
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How can I see what has changed in a file before committing to git?

...ere are three useful ways to use git diff: Show differences between index and working tree; that is, changes you haven't staged to commit: git diff [filename] Show differences between current commit and index; that is, what you're about to commit (--staged does exactly the same thing, use what y...
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How to replace ${} placeholders in a text file?

..., the file having variables like ${dbName} interspersed. What is the command line utility to replace these instances and dump the output to standard output? ...
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How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

I'm trying to register my android app following the steps in https://developers.google.com/console/help/#installed_applications which leads me to follow http://developer.android.com/tools/publishing/app-signing.html . ...
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How to pass an object from one activity to another on Android

...ng to work on sending an object of my customer class from one Activity and display it in another Activity . 32 Answers...
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What's the simplest way to print a Java array?

... Since Java 5 you can import java.util.Arrays; and then use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even decorated in the exact way you're asking...
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How to create new tmux session if none exists

...session (start the server, read the config file, issue the new-session command) and attach to that. share | improve this answer | follow | ...
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The transaction manager has disabled its support for remote/network transactions

I'm using SQL Server and ASP.NET. I have the following function: 10 Answers 10 ...
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Is there a download function in jsFiddle?

...nload function in jsFiddle, so you can download an HTML with the CSS, HTML and JS in one file, so you can run it without jsFiddle for debug purposes? ...