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javacomparator

Use of super in Comparator in java

I understand in

Comparator < ? super T> comp

it returns the maximum element of the given collection, according to the order defined by the specified comparator. But I don't understand the purpose of the

super T

Could anyone possibly explain?

Solution

  • In here < ? super T> means generics - NOT comparisons.

    It means you have a Comparator with a generic type of ? super T (something that extends is super typed by T), as explained in this thread

    comp is the variable name (binding).

    So basically in here Comparator < ? super T> is a type and comp is an identifier (variable name), that is of type Comparator <? super T>

    For more info: Java Generics