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Why are arrays covariant but generics are invariant?
...o implement functions of type
boolean equalArrays (Object[] a1, Object[] a2);
void shuffleArray(Object[] a);
However, if array types were treated as invariant, it would only be possible to call these functions on an array of exactly the type Object[]. One could not, for example, shuffle an ar...
java: run a function after a specific number of seconds
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235
new java.util.Timer().schedule(
new java.util.TimerTask() {
@Override
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Android notification doesn't disappear after clicking the notifcation
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answered May 30 '13 at 20:41
Kamil LelonekKamil Lelonek
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Change Placeholder Text using jQuery
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edited Oct 31 '12 at 7:00
bipen
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answer...
How Do I Document Packages in Java?
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258
As of 1.5 you can define a package-info.java file and provide a standard javadoc style comment...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
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Scott Arciszewski
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answered Dec 4 '09 at 10:55
loletechlolet...
Vim: apply settings on files in directory
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42
I'm an advocate of the plugin way.
For several reasons:
Modelines are particularly limited: we...
Python constructors and __init__
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edited Feb 7 '18 at 20:31
Solomon Ucko
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ans...
Will Google Android ever support .NET? [closed]
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325
votes
Update: Since I wrote this answer two years ago, we productized Mono to run ...