Special Edition Using Java 2 Standard Edition

Collection Utilities and Wrappers

Besides the methods already introduced, the Collections class provides a number of other useful support functions. This section outlines some of the more commonly used utilities and the Collections methods that wrap the general-purpose collection implementations with special features.

Utility Methods and Fields

In addition to searching for a specific object in a collection, you can use Collections to locate the maximum or minimum object based either on natural ordering or a Comparator:

public static Object max(Collection coll)
public static Object max(Collection coll, Comparator c)
public static Object min(Collection coll)
public static Object min(Collection coll, Comparator c)

You can reorder the elements ...