Android Bit Shift bitShiftLeft(byte[] data)

Description

bit Shift Left

Declaration

public static byte[] bitShiftLeft(byte[] data) 

Method Source Code

//package com.java2s;

public class Main {
    public static byte[] bitShiftLeft(byte[] data) {
        byte[] shifted = new byte[data.length];
        int carry = 0;
        for (int i = data.length - 1; i >= 0; i--) {
            int newCarry = getMostSignificantBit(data[i]);
            shifted[i] = (byte) (data[i] << 1);
            shifted[i] |= carry;/*from   ww w  .ja va2  s  .  c  o m*/
            carry = newCarry;
        }
        return shifted;
    }

    public static int getMostSignificantBit(byte b) {
        return b >> 7 & 0x1;
    }
}