What is cool about generics, why use them? [closed]
I thought I'd offer this softball to whomever would like to hit it out of the park. What are generics, what are the advantages of generics, why, where, how should I use them? Please keep it fairly ...
New syntax of Python generics - Stack Overflow
Jan 6, 2025 · So, what's your question? Yes, the "new-style" PEP695 generics are similar to "old-style" generics. Their runtime implementation details are laid out in the PEP. If there is something unclear …
Java generics: multiple generic parameters? - Stack Overflow
package generics.basics; import java.util.ArrayList; import java.util.List; public class GenericMethods { /* Declare the generic type parameter T in this method. After the qualifiers public and static, you put …
oop - What are Generics in Java? - Stack Overflow
Oct 19, 2011 · Generics are not templates. Primitives do not (yet) have common type in Java. So T could not be anything that then can be used for any of these types. There are wrappers and they all …
Create instance of generic type in Java? - Stack Overflow
Sep 17, 2008 · 20 From Java Tutorial - Restrictions on Generics: Cannot Create Instances of Type Parameters You cannot create an instance of a type parameter. For example, the following code …
Generics/templates in python? - Stack Overflow
Oct 13, 2014 · The other answers are totally fine: One does not need a special syntax to support generics in Python Python uses duck typing as pointed out by André. However, if you still want a …
c# - <out T> vs <T> in Generics - Stack Overflow
The out keyword in generics is used to denote that the type T in the interface is covariant. See Covariance and contravariance for details. The classic example is IEnumerable<out T>. Since …
java - What are Reified Generics? How do they solve Type Erasure ...
Yes, generics in class declarations like the types in generic parameters, types of fields, types in method signatures, type of superclass, type of enclosing class of inner classes (there is nothing special about …
What are the differences between "generic" types in C++ and Java?
Generics, as I understand them, work the other way around: the type parameters are used by the compiler to verify that the code using them is type-safe, but the resulting code is generated without …
c# - How to compare values of generic types? - Stack Overflow
How do I compare values of generic types? I have reduced it to a minimal sample: public class Foo<T> where T : IComparable { private T _minimumValue = default (T); public bool IsInR...