weiss.util
Class Collections

java.lang.Object
  weiss.util.Collections

public class Collections
extends java.lang.Object

Instanceless class contains static methods that operate on collections.

Method Summary

static <AnyType extends java.lang.Object & java.lang.Comparable<? super AnyType>> AnyType	max(Collection<? extends AnyType> coll) Returns the maximum object in the collection, using default ordering
static <AnyType> AnyType	max(Collection<? extends AnyType> coll, Comparator<? super AnyType> cmp) Returns the maximum object in the collection, using comparator.
static <AnyType> Comparator<AnyType>	reverseOrder()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

max

public static <AnyType extends java.lang.Object & java.lang.Comparable<? super AnyType>> AnyType max(Collection<? extends AnyType> coll)

Returns the maximum object in the collection, using default ordering

Parameters:

coll - the collection.

Returns:

the maximum object.

Throws:

NoSuchElementException - if coll is empty.

java.lang.ClassCastException - if objects in collection cannot be compared.

max

public static <AnyType> AnyType max(Collection<? extends AnyType> coll,
                                    Comparator<? super AnyType> cmp)

Returns the maximum object in the collection, using comparator.

Parameters:

coll - the collection.

cmp - the comparator.

Returns:

the maximum object.

Throws:

NoSuchElementException - if coll is empty.

java.lang.ClassCastException - if objects in collection cannot be compared.

reverseOrder

public static <AnyType> Comparator<AnyType> reverseOrder()