com.numericalmethod.suanshu.algorithm

Class Combination<T>

java.lang.Object

com.numericalmethod.suanshu.algorithm.Combination<T>

All Implemented Interfaces:

java.lang.Iterable<java.util.List<T>>

public class Combination<T>
extends java.lang.Object
implements java.lang.Iterable<java.util.List<T>>

A combination is a way of selecting several things out of a larger group, where (unlike permutations) order does not matter.

See Also:

Wikipedia: Combination

Constructor Summary

Constructors

Constructor and Description
Combination(T[]... sets) Construct an Iterable of all combinations of arrays, taking one element from each array.

Method Summary

Modifier and Type	Method and Description
java.util.Iterator<java.util.List<T>>	iterator()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Combination

public Combination(T[]... sets)

Construct an Iterable of all combinations of arrays, taking one element from each array.

For example, suppose we have two arrays:

 {1, 2}
 {3, 4, 5}
 

The possible combinations are:

 {1, 3}
 {1, 4}
 {1, 5}
 {2, 3}
 {2, 4}
 {2, 5}
 

Parameters:

sets - arrays of elements

Method Detail

iterator

public java.util.Iterator<java.util.List<T>> iterator()

Specified by:

iterator in interface java.lang.Iterable<java.util.List<T>>