public static <t extends Comparable<? Super t>> void Sort (list<t> List) understanding

public static <t extends Comparable<? Super t>> void Sort (list<T> list) understanding

public static <t extends Comparable<? Super t>> void sort (List <t> list)

(1) First: public static void Sort (List list)

(2) for security and generics: public static <T>void sort (List <T> list)

(3) to sort first compare, to have comparability, so t must be a subclass of comparable: public static <t extends comparable >void sort (List <T> list)

(4) Comparable interface also has a generic type: public static <t extends comparable <T> > void Sort (List <T> List

(5) t The parent class is also OK, <? Super t> indicates that the type lower bound in comparable<> is t:public static <t extends Comparable<? Super t>> void sort (List <t> list)

public static <t extends Comparable<? super t>> void Sort (list<t> List) Understanding