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Converting a List to a comma separated string
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List<int> list = ...;
string.Join(",", list.Select(n => n.ToString()).ToArray())
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Xcode debugging - displaying images
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Use Quick Look to inspect images in the Xcode debugger.
Select an NSImage or UIImage in the debugger, then click the Quick Look "eye" icon.
Like other areas of OS X, you can also use spacebar to Quick Look!
Quick Look in the debugger can also be implemented for your own classes:...
How to configure Eclipse build path to use Maven dependencies?
...en simply import it in Eclipse (right-click the Package Explorer view and select Import... > Maven Projects) and it will be "Maven ready".
Now, to add a dependency, either right-click the project and select Maven > Add Dependency) or edit the pom manually.
PS: avoid using the maven-eclipse...
Error: allowDefinition='MachineToApplication' beyond application level
...rror just now when I attempted to open a project I created a while back by selecting "File", "Open Website" from the Visual Studio menus whereas I should have selected "File", "Open Project" instead. I facepalmed as soon as I realised :)
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How to center a checkbox in a table cell?
... myTextEditBox
</td>
<td>
<select size ="1" name="myTextEditBox_compare_operator">
<option value="=">equals</option>
<option value="<>">does not equal</option>
</select>
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Xcode Command /usr/bin/codesign failed with exit code 1 : errSecInternalComponent
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Open Keychain Access, then in the File menu select Lock All Keychains.
Then go back to Xcode and clean and rebuild. It will prompt you for your password again to unlock the keychain.
After this, assuming you have no other compile issues, it will succeed!
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Linq style “For Each” [duplicate]
...ibe(...) seems to be around 50 times slower than ToList().ForEach(...) and Select(...).ToList()
– qujck
Jan 6 '14 at 16:44
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How can I turn a List of Lists into a List in Java 8?
... .collect(Collectors.toList())
This is would be similar in SQL to having SELECT statements within SELECT statements.
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Check if element exists in jQuery [duplicate]
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CSS selectors are used therefore "#elementId" selects by element. "elementId" would actually select all emenets whose tags are named "elementId"
– Petr Gladkikh
Dec 13 '12 at 7:13
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Why does String.valueOf(null) throw a NullPointerException?
...s
How does polymorph ambiguity distinction work?
Which overload will get selected for null in Java?
Moral of the story
There are several important ones:
Effective Java 2nd Edition, Item 41: Use overloading judiciously
Just because you can overload, doesn't mean you should every time
They ...