Top "Bounded-wildcard" questions

Bounded wildcard is a type argument of the form "? extends T" or "? super T". Bounded wildcards are a feature of generics in the Java language.

Cannot Instantiate Type in generics

I have this class public class Tree<T> { //List of branches for this tree private List<Tree&…

java generics wildcard bounded-wildcard
Java bounded wildcard in return type

I've read in various places including here that having a bounded wildcard in a method return type is a bad …

java generics bounded-wildcard
Difference between Scala's existential types and Java's wildcard by example?

A bit more specific than Stack Overflow question What is an existential type?, what is the difference between Scala's existential …

java scala type-systems bounded-wildcard existential-type