com.ijchart.xychart.util
Class HashcodeUtil

java.lang.Object
  com.ijchart.xychart.util.HashcodeUtil

public final class HashcodeUtil
extends java.lang.Object

Title: IJChart

Description: a chart library for the Java(tm) platform.

A util class for calculate the hashcode of a object.

Copyright: Copyright (c) 2013

Company:

Version:

1.0

Author:

zhang feng min,shanghai china. Contract me by email.

Method Summary

static int	hashCode(boolean b) Returns a hashcode for a boolean value,true 1 otherwise 0.
static int	hashCode(java.awt.Image image) Returns a hashcode for an image,if the image is null return 0 otherwise return image.width*image.height.
static int	hashCode(java.lang.Object object) Returns a hash code for an object, or zero if the object is null.
static int	hashCode(java.lang.Object[] object) Returns a hash code for an array, or zero if the object is null.
static int	hashCode(java.awt.Paint paint) Returns a hash code for a Paint instance.If p is null, this method returns zero.

Methods inherited from class java.lang.Object

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

Method Detail

hashCode

public static int hashCode(java.lang.Object object)

Returns a hash code for an object, or zero if the object is null.

Parameters:

object - Object The object (null permitted).

Returns:

The object's hash code (or zero if the object is null).

hashCode

public static int hashCode(java.lang.Object[] object)

Returns a hash code for an array, or zero if the object is null.

Parameters:

object - Object The object (null permitted).

Returns:

The object's hash code (or zero if the object is null).

hashCode

public static int hashCode(java.awt.Image image)

Returns a hashcode for an image,if the image is null return 0 otherwise return image.width*image.height.

Parameters:

image - Image The Image object.

Returns:

A hashcode.If the image is null return 0 otherwise return image.width*image.height.

hashCode

public static int hashCode(boolean b)

Returns a hashcode for a boolean value,true 1 otherwise 0.

Parameters:

b - boolean The boolean value.

Returns:

A hashcode.If b is true return 1,otherwise return 0.

hashCode

public static int hashCode(java.awt.Paint paint)

Returns a hash code for a Paint instance.If p is null, this method returns zero.

Parameters:

paint - Paint The paint (null permitted).

Returns:

int The hash code.