org.apache.commons.math3.util

Class IntegerSequence.Range

java.lang.Object

org.apache.commons.math3.util.IntegerSequence.Range

All Implemented Interfaces:

java.lang.Iterable<java.lang.Integer>

Enclosing class:

IntegerSequence

public static class IntegerSequence.Range
extends java.lang.Object
implements java.lang.Iterable<java.lang.Integer>

Generates a sequence of integers.

Field Summary

Fields

Modifier and Type	Field and Description
private int	max Final value.
private int	size Number of integers contained in this range.
private int	start First value.
private int	step Increment.

Constructor Summary

Constructors

Constructor and Description
IntegerSequence.Range(int start, int max, int step) Creates a sequence \( a_i, i < 0 <= n \) where \( a_i = start + i * step \) and \( n \) is such that \( a_n <= max \) and \( a_{n+1} > max \).

Method Summary

Methods

Modifier and Type	Method and Description
java.util.Iterator<java.lang.Integer>	iterator()
int	size() Gets the number of elements contained in the range.

Methods inherited from class java.lang.Object

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

Field Detail

size

private final int size

Number of integers contained in this range.

start

private final int start

First value.

max

private final int max

Final value.

step

private final int step

Increment.

Constructor Detail

IntegerSequence.Range

public IntegerSequence.Range(int start,
                     int max,
                     int step)

Creates a sequence \( a_i, i < 0 <= n \) where \( a_i = start + i * step \) and \( n \) is such that \( a_n <= max \) and \( a_{n+1} > max \).

Parameters:

start - First value of the range.

max - Last value of the range that satisfies the above construction rule.

step - Increment.

Method Detail

size

public int size()

Gets the number of elements contained in the range.

Returns:

the size of the range.

iterator

public java.util.Iterator<java.lang.Integer> iterator()

Specified by:

iterator in interface java.lang.Iterable<java.lang.Integer>