## org.apache.commons.math.stat
Class Frequency.NaturalComparator<T extends java.lang.Comparable<T>>

    java.lang.Object
      org.apache.commons.math.stat.Frequency.NaturalComparator<T>

All Implemented Interfaces:
  java.io.Serializable, java.util.Comparator<java.lang.Comparable<T>>

Enclosing class:
  Frequency

    private static class Frequency.NaturalComparator<T extends java.lang.Comparable<T>>

extends java.lang.Object
implements java.util.Comparator<java.lang.Comparable<T>>, java.io.Serializable

A Comparator that compares comparable objects using the natural order. Copied from Commons Collections ComparableComparator.

Field Summary
`private static long` `serialVersionUID` Serializable version identifier

Constructor Summary
`private` `Frequency.NaturalComparator()`

Method Summary
`int` `compare(java.lang.Comparable<T> o1, java.lang.Comparable<T> o2)` Compare the two `Comparable` arguments.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface java.util.Comparator
`equals`

Field Detail

### serialVersionUID

    private static final long serialVersionUID

  Serializable version identifier

  See Also:
    Constant Field Values

Constructor Detail

### Frequency.NaturalComparator

    private Frequency.NaturalComparator()

Method Detail

### compare

    public int compare(java.lang.Comparable<T> o1,
                       java.lang.Comparable<T> o2)

  Compare the two `Comparable` arguments. This method is equivalent to:

      ((Comparable)o1).compareTo(o2)

  Specified by:
    `compare` in interface `java.util.Comparator<java.lang.Comparable<T extends java.lang.Comparable<T>>>`
  Parameters:
    `o1` - the first object
    `o2` - the second object
  Returns:
    result of comparison
  Throws:
    `java.lang.NullPointerException` - when o1 is `null`, or when `((Comparable)o1).compareTo(o2)` does
    `java.lang.ClassCastException` - when o1 is not a `Comparable`, or when `((Comparable)o1).compareTo(o2)` does

Copyright (c) 2003-2011 Apache Software Foundation