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How to sort an ArrayList?
I have a List of doubles in java and I want to sort ArrayList in descending order.
20 Answers
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Type.GetType(“namespace.a.b.ClassName”) returns null
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the type exists, it's in a different class library, and i need to get it by string name
– Omu
Dec 1 '09 at 9:58
28
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How to pad zeroes to a string?
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Strings:
>>> n = '4'
>>> print(n.zfill(3))
004
And for numbers:
>>> n = 4
>>> print(f'{n:03}') # Preferred method, python >= 3.6
004
>>> print('%03d' % n)
004
>>> print(format(n, '03')) # python >= 2.6
004
>>> print('{0:...
Error inflating when extending a class
...ed to include both constructors whenever you make a custom view? (context, and then context and attributes)
– Tim
Feb 3 '13 at 7:34
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Android: Go back to previous activity
I want to do something simple on android app.
How is it possible to go back to a previous activity.
23 Answers
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Clicking URLs opens default browser
...icks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView . But it's opening the default browser and loading the page there?
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What are the benefits of Java's types erasure?
...erned with the Twitter user. It's helpful to keep focused on the messages and not the messenger. There is a fairly consistent message with even just the excerpts mentioned thus far:
It's funny when Java users complain about type erasure, which is the only thing Java got right, while ignoring all ...
Getting file names without extensions
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And to get the extension (to add later for example) use: Path.GetExtension(fileName);
– Justin
Mar 27 '14 at 9:08
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Java equivalents of C# String.Format() and String.Join()
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More precisely: StringBuffer for jdk1.4 and below, StringBuilder for jdk1.5 and after, since the latter is not synchronized, hence a little faster.
– VonC
Oct 9 '08 at 15:39
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Is there any performance reason to declare method parameters final in Java?
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The final keyword does not appear in the class file for local variables and parameters, thus it cannot impact the runtime performance. It's only use is to clarify the coders intent that the variable not be changed (which many consider dubious reason for its usage), and dealing with anonymous inn...