java 源码中T的含义

/**
* Returns a fixed-size list backed by the specified array.  (Changes to
* the returned list "write through" to the array.)  This method acts
* as bridge between array-based and collection-based APIs, in
* combination with {@link Collection#toArray}.  The returned list is
* serializable and implements {@link RandomAccess}.
*
* <p>This method also provides a convenient way to create a fixed-size
* list initialized to contain several elements:
* <pre>
*     List<String> stooges = Arrays.asList("Larry", "Moe", "Curly");
* </pre>
*
* @param <T> the class of the objects in the array
* @param a the array by which the list will be backed
* @return a list view of the specified array
*/
@SafeVarargs
@SuppressWarnings("varargs")
public static <T> List<T> asList(T... a) {
return new ArrayList<>(a);
}