Каково конкретное использование подстановочных знаков в дженериках? ⇐ JAVA

[Anonymous]

I am confused about the use of the wild cards in generics of java. I know how to use them but I don't understand when I should use them .

I have learnt that wild cards can be used like this

public static void sort(ArrayList

Источник: https://stackoverflow.com/questions/781 ... n-generics