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Passing data between a fragment and its container activity

...the interface... public interface OnDataPass { public void onDataPass(String data); } Then, connect the containing class' implementation of the interface to the fragment in the onAttach method, like so: OnDataPass dataPasser; @Override public void onAttach(Context context) { super.onAtt...
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Calling the base constructor in C#

...: public class MyExceptionClass : Exception { public MyExceptionClass(string message, string extrainfo) : base(message) { //other stuff here } } Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your ...
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Is there a Pattern Matching Utility like GREP in Windows?

...ndows 7/2008R2, optional for XP/2003/Vista/2008) which includes the select-string cmdlet for this purpose. share | improve this answer | follow | ...
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How to play with Control.Monad.Writer in haskell?

...sk for its type: ghci> :t logNumber logNumber :: (Show a, MonadWriter [String] m) => a -> m a Which tells me that the inferred type is not a function that returns a particular writer, but rather anything that implements the MonadWriter type class. I can now use it: ghci> let multWith...
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How to generate random number with the specific length in python

... If you want it as a string (for example, a 10-digit phone number) you can use this: n = 10 ''.join(["{}".format(randint(0, 9)) for num in range(0, n)]) share ...
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How to quickly check if folder is empty (.NET)?

...EnumerateFileSystemEntries method overloads public bool IsDirectoryEmpty(string path) { IEnumerable<string> items = Directory.EnumerateFileSystemEntries(path); using (IEnumerator<string> en = items.GetEnumerator()) { return !en.MoveNext(); } } EDIT: seeing t...
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Associating enums with strings in C#

... example for a Logger: public class LogCategory { private LogCategory(string value) { Value = value; } public string Value { get; set; } public static LogCategory Trace { get { return new LogCategory("Trace"); } } public static LogCategory Debug { get { return new LogCategory(...
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Echo equivalent in PowerShell for script testing

... You also want to get familiar with Out-String, because with any non-trivial object, you'll need to use that to convert the object to a display-able string before using any of those three Write-* cmdlets. – Jaykul Nov 2 '09 at...
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How to cast/convert pointer to reference in C++

... bhhaaa, I added the "I guess" because it made me write at least 30 chars. that's also way I add the "..........." – Roee Gavirel Apr 16 '12 at 11:41 10 ...
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How do I join two lists in Java?

... In Java 8: List<String> newList = Stream.concat(listOne.stream(), listTwo.stream()) .collect(Collectors.toList()); share | ...