arrays.java

来自「java 文件下载器。可自定义」· Java 代码 · 共 93 行

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   Arrays.java

package org.bouncycastle.util;


public final class Arrays
{

	private Arrays()
	{
	}

	public static boolean areEqual(byte a[], byte b[])
	{
		if (a == b)
			return true;
		if (a == null || b == null)
			return false;
		if (a.length != b.length)
			return false;
		for (int i = 0; i != a.length; i++)
			if (a[i] != b[i])
				return false;

		return true;
	}

	public static boolean areEqual(int a[], int b[])
	{
		if (a == b)
			return true;
		if (a == null || b == null)
			return false;
		if (a.length != b.length)
			return false;
		for (int i = 0; i != a.length; i++)
			if (a[i] != b[i])
				return false;

		return true;
	}

	public static void fill(byte array[], byte value)
	{
		for (int i = 0; i < array.length; i++)
			array[i] = value;

	}

	public static void fill(long array[], long value)
	{
		for (int i = 0; i < array.length; i++)
			array[i] = value;

	}

	public static void fill(short array[], short value)
	{
		for (int i = 0; i < array.length; i++)
			array[i] = value;

	}

	public static int hashCode(byte data[])
	{
		int value = 0;
		if (data != null)
		{
			for (int i = 0; i != data.length; i++)
				value ^= (data[i] & 0xff) << i % 4;

		}
		return value;
	}

	public static byte[] clone(byte data[])
	{
		byte copy[] = new byte[data.length];
		System.arraycopy(data, 0, copy, 0, data.length);
		return copy;
	}

	public static int[] clone(int data[])
	{
		int copy[] = new int[data.length];
		System.arraycopy(data, 0, copy, 0, data.length);
		return copy;
	}
}