Package org.jfree.chart.util
Class ArrayUtils
- java.lang.Object
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- org.jfree.chart.util.ArrayUtils
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public class ArrayUtils extends java.lang.Object
Utility methods for working with arrays.
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Constructor Summary
Constructors Modifier Constructor Description private
ArrayUtils()
Private constructor prevents object creation.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static float[][]
clone(float[][] array)
Clones a two dimensional array of floats.static int
compareVersionArrays(java.lang.Comparable[] a1, java.lang.Comparable[] a2)
Compares the initial elements of two arrays.static boolean
equal(float[][] array1, float[][] array2)
Tests two float arrays for equality.static boolean
equalReferencesInArrays(java.lang.Object[] array1, java.lang.Object[] array2)
Returnstrue
if all the references inarray1
are equal to all the references inarray2
(twonull
references are considered equal for this test).static boolean
hasDuplicateItems(java.lang.Object[] array)
Returnstrue
if any two items in the array are equal to one another.
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Method Detail
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clone
public static float[][] clone(float[][] array)
Clones a two dimensional array of floats.- Parameters:
array
- the array.- Returns:
- A clone of the array.
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equalReferencesInArrays
public static boolean equalReferencesInArrays(java.lang.Object[] array1, java.lang.Object[] array2)
Returnstrue
if all the references inarray1
are equal to all the references inarray2
(twonull
references are considered equal for this test).- Parameters:
array1
- the first array (null
permitted).array2
- the second array (null
permitted).- Returns:
- A boolean.
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equal
public static boolean equal(float[][] array1, float[][] array2)
Tests two float arrays for equality.- Parameters:
array1
- the first array (null
permitted).array2
- the second arrray (null
permitted).- Returns:
- A boolean.
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hasDuplicateItems
public static boolean hasDuplicateItems(java.lang.Object[] array)
Returnstrue
if any two items in the array are equal to one another. Anynull
values in the array are ignored.- Parameters:
array
- the array to check.- Returns:
- A boolean.
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compareVersionArrays
public static int compareVersionArrays(java.lang.Comparable[] a1, java.lang.Comparable[] a2)
Compares the initial elements of two arrays.- Parameters:
a1
- array 1.a2
- array 2.- Returns:
- An integer showing the relative ordering.
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