com.hazelcast.util

Class ByteUtil

java.lang.Object

com.hazelcast.util.ByteUtil

public final class ByteUtil
extends Object

This class allows to set, clear and check bits of a byte value.

Method Summary

Modifier and Type	Method and Description
static byte[]	concatenate(byte[] a, byte[] b)
static boolean[]	fromByte(byte b)
static boolean	isFalse(byte number, int index) Checks if the index-th bit of number is NOT set.
static boolean	isTrue(byte number, int index) Checks if the index-th bit of number is set.
static byte	setFalse(byte number, int index) Clears a bit, by setting it to 0.
static byte	setTrue(byte number, int index) Sets a bit to 1.
static String	toBinaryString(byte number)
static byte	toByte(boolean... values)

Methods inherited from class java.lang.Object

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

Method Detail

setTrue

public static byte setTrue(byte number,
                           int index)

Sets a bit to 1.

Parameters:

number - the original byte value

index - the bit to set

Returns:

the modified byte value

setFalse

public static byte setFalse(byte number,
                            int index)

Clears a bit, by setting it to 0.

Parameters:

number - the original byte value

index - the bit to set

Returns:

the modified byte value

isTrue

public static boolean isTrue(byte number,
                             int index)

Checks if the index-th bit of number is set.

Parameters:

number - the byte value

index - the bit to check

Returns:

true if the bit is set, false otherwise

isFalse

public static boolean isFalse(byte number,
                              int index)

Checks if the index-th bit of number is NOT set.

Parameters:

number - the byte value

index - the bit to check

Returns:

true if the bit is NOT set, false otherwise

toByte

public static byte toByte(boolean... values)

fromByte

public static boolean[] fromByte(byte b)

toBinaryString

public static String toBinaryString(byte number)

concatenate

public static byte[] concatenate(byte[] a,
                                 byte[] b)