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Static Indexers?

...follows: public class Utilities { private static ConfigurationManager _configurationManager = new ConfigurationManager(); public static ConfigurationManager ConfigurationManager => _configurationManager; } public class ConfigurationManager { public object this[string value] { ...
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How do I concatenate two strings in C?

...-terminator. char* concat(const char *s1, const char *s2) { const size_t len1 = strlen(s1); const size_t len2 = strlen(s2); char *result = malloc(len1 + len2 + 1); // +1 for the null-terminator // in real code you would check for errors in malloc here memcpy(result, s1, len1); ...
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How to remove padding around buttons in Android?

... I don't think this answer actually answers the original question at all. But I'm still glad I came across it because I couldn't figure out why my Button was still taking up so much space even after setting its android:background="@null". The fact that the...
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What is the best IDE to develop Android apps in? [closed]

... LATEST NEWS Android Studio has officially come out of beta and been released. It is now the official IDE for Android Development - Eclipse won't be supported anymore. It is definitely the IDE of choice for Android Development. Link to download page: http://devel...
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ipython: print complete history (not just current session)

... First use %hist -o -g -f ipython_history.md to output the history (input and output) to a text file. (http://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-history) Then you can use the the get_session_info function to retreive the date and...
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Difference between String#equals and String#contentEquals methods

...This way, you can implement the sense of "equal content" more freely. This allows you to make intelligent comparisons between a StringBuffer and a String, for example. And to say what exactly the difference is: String.contentEquals() can compare the contents of a String, a StringBuilder, a String...
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Android XML Percent Symbol

...ol (aapt) has become very strict in its latest release and is now used for all Android versions. The aapt-error you're getting is generated because it no longer allows non-positional format specifiers. Here are a few ideas how you can include the %-symbol in your resource strings. If you don't nee...
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How can I get the SQL of a PreparedStatement?

... Although this is functionally true, there's nothing preventing utility code from reconstructing an equivalent unprepared statement. For example, in log4jdbc: "In the logged output, for prepared statements, the bind arguments are automatically insert...
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue

...working on a UI for an app, and I'm attempting to use grayscale icons, and allow the user to change the theme to a color of their choosing. To do this, I'm trying to just apply a ColorFilter of some sort to overlay a color on top of the drawable. I've tried using PorterDuff.Mode.MULTIPLY, and it wor...
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How to get scrollbar position with Javascript?

...roll position isn't set on document.body in most modern browsers - it's usually set on document.documentElement now. See bugs.chromium.org/p/chromium/issues/detail?id=157855 for Chrome's transition. – fzzfzzfzz May 3 '18 at 15:51 ...