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Cast List to List
...uit.Add(new Banana());
// Eek - it's a banana!
Apple apple = apples[0];
Now you can convert a List<Apple> to an IEnumerable<IFruit> in .NET 4 / C# 4 due to covariance, but if you want a List<IFruit> you'd have to create a new list. For example:
// In .NET 4, using the covarianc...
Checking if array is multidimensional or not?
...lling the creation of the original array. I'll leave the question open for now in case there's a solution that might work more generally though.
– Wilco
Sep 28 '08 at 6:27
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Why do you have to call .items() when iterating over a dictionary in Python?
...hen would you ever write a condition like this?
if (key, value) in dict:
Now it's not necessary that the in operator and for ... in operate over the same items. Implementation-wise they are different operations (__contains__ vs. __iter__). But that little inconsistency would be somewhat confusing ...
What GUI libraries are the JetBrains using?
...ecause IntelliJ IDEA was created back in 2000 when JavaFX didn't exist and now it's not feasible rewriting millions of lines of code and redesigning thousands of dialogs and UI elements for the doubtable benefits?
– CrazyCoder
Jul 3 '17 at 8:18
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Run Java Code Online [closed]
...restrictions", maybe in the future i will add warnings or something. Right now "while(true){}" is working as expected. no prob.
– Sergio
Apr 27 '16 at 16:57
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How to iterate through range of Dates in Java?
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The Joda-Time project is now in maintenance mode, and recommends migration to the java.time classes. As mentioned in comments, this Answer’s code works as-is in java.time, just change your import statements.
– Basil Bourque
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What are the Ruby File.open modes and options?
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Unfortunately, that link now appears to be stale!
– Carl Smotricz
Feb 5 '13 at 20:14
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How to test my servlet using JUnit
I have created a web system using Java Servlets and now want to make JUnit testing. My dataManager is just a basic piece of code that submits it to the database. How would you test a Servlet with JUnit?
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How to properly exit a C# application?
...nForms application, so it is unlikely to matter in this case, but good to know for anyone writing command-line tools.)
– YipYip
Jun 20 '18 at 19:00
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How to access data/data folder in Android device?
I am developing an app and I know my database *.db will appear in data/data/com.****.***
18 Answers
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