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Cast Object to Generic Type for returning

... I know it's from the OP, but really { catch(ClassCastException e) { return null; } is unforgiveable – artbristol Jan 25 '13 at 16:38 ...
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Should I use single or double colon notation for pseudo-elements?

...a special meaning to the comma (,) in selectors. However, since it is not known if the comma may acquire other meanings in future updates of CSS, the whole statement should be ignored if there is an error anywhere in the selector, even though the rest of the selector may look reasonable in CSS 2.1. ...
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Binding a WPF ComboBox to a custom list

...k, although with some inefficiencies, but advanced features may encounter known bugs. Consider using a derived class to avoid these problems. Edit2 (.NET 4.5): The content of the DropDownList can be based on ToString() and not of DisplayMemberPath, while DisplayMemberPath specifies the member for ...
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?

... the output, e.g., to a file. ---- script a.ps1 ---- write-host "hello" Now run in PowerShell: PS> .\a.ps1 > someFile.txt hello PS> type someFile.txt PS> As seen, you can't redirect them into a file. This maybe surprising for someone who are not careful. But if switched to use wr...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

...our validation data a number of times, and observe performance. You should now find that the mean performance on small samples of your validation data is roughly the same as the performance on all the validation data, but the variance is much higher with smaller numbers of test samples ...
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Hide keyboard when scroll UITableView

... I've been doing iOS dev since for 3 years and I didn't know about this until now... unreal. – Jacob King Oct 28 '16 at 10:37 ...
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Dynamically adding a form to a Django formset with Ajax

... the formset 3) User clicks the back button in the browser 4) Formset is now reduced to the original form, all dynamically added forms are not there This is not a defect with Paolo's script at all; but a fact of life with dom manipulation and browser's cache. I suppose one could store the values...
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“Public key certificate and private key doesn't match” when using Godaddy issued certificate [closed

...nux ami). I had no problems getting that setup directly on the server. I now need to move the certificate from the web server to the new load balancer. Amazon requires the private key and certs to be in PEM format, so I used the "rekey" tool at GoDaddy to create new certs. When I load those in t...
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Can't create handler inside thread that has not called Looper.prepare()

...---------------------------------------------------------------------- I know I am a little late but here goes. Android basically works on two thread types namely UI thread and background thread. According to android documentation - Do not access the Android UI toolkit from outside the UI thre...
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

... Good to know. I have to say im not too thrilled with the feature list for Lion. There doesnt seem to much there in the way of enhancements for my usage... – prodigitalson Jul 6 '11 at 2:29 ...