generics Archives - Page 5 of 11

Get generic type of java.util.List

I have; List<String> stringList = new ArrayList<String>(); List<Integer> integerList = new ArrayList<Integer>(); Is there a (easy) way to retrieve the generic type of ...

May 17, 2022
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What is a higher kinded type in Scala?

You can find the following on the web: Higher kinded type == type constructor? class AClass[T]{...} // For example, class List...

May 17, 2022
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What’s the reason I can’t create generic array types in Java?

What’s the reason why Java doesn’t allow us to do private T elements = new T...

May 17, 2022
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Generic method with multiple constraints

I have a generic method which has two generic parameters. I tried to compile the code below but it doesn’t work. Is it ...

May 16, 2022
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What is the difference between ‘E’, ‘T’, and ‘?’ for Java generics?

I come across Java code like this: public interface Foo<E> {} public interface Bar<T> {} public interface Zar<?> {} What is the difference ...

May 16, 2022
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Null or default comparison of generic argument in C#

I have a generic method defined like this: public void MyMethod<T>(T myArgument) The first thing I want to do is check if the ...

May 15, 2022
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Case insensitive access for generic dictionary

I have an application that use managed dlls. One of those dlls return a generic dictionary: Dictionary<string, int> MyDictionary; The dictionary contains keys ...

May 14, 2022
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IEnumerable and Recursion using yield return

I have an IEnumerable<T> method that I’m using to find controls in a WebForms page. The method is recursive and I’m having some ...

May 14, 2022
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What causes javac to issue the “uses unchecked or unsafe operations” warning

For example: javac Foo.java Note: Foo.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 12 Answers 12

May 14, 2022
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