Java BitSet byteArray2BitSet(byte[] bytes)

Description

Returns a bitset containing the values in bytes.

License

Apache License

Parameter

Parameter	Description
bytes	a parameter

Declaration

public static BitSet byteArray2BitSet(byte[] bytes) 

Method Source Code

//package com.java2s;
/*/*from w  w w . j ava 2s. c o  m*/
 * Copyright 2010 sasc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.BitSet;

public class Main {
    /**
     * Returns a bitset containing the values in bytes.
     * The byte-ordering of bytes must be big-endian which means the most significant bit is in element 0.
     *
     * @param bytes
     * @return
     */
    public static BitSet byteArray2BitSet(byte[] bytes) {
        BitSet bits = new BitSet();
        for (int i = 0; i < bytes.length * 8; i++) {
            if ((bytes[bytes.length - i / 8 - 1] & (1 << (i % 8))) > 0) {
                bits.set(i);
            }
        }
        return bits;
    }
}

Related

1. bitsetCopy(BitSet src, int srcOffset, BitSet dest, int destOffset, int length)
2. bitSetTest(BitSet bitSet, int index)
3. BitString2BitSet(String string)
4. boolToBitSet(boolean[] bits, int offset, int length)
5. byte2BitSet(BitSet bmap, byte[] b, int bitOffset)
6. bytes2bitset(byte[] bytes, byte nbyte, BitSet bits)
7. bytesToBits(byte[] b, BitSet ba, int maxSize)
8. cardinalityOf(BitSet bs)
9. check(BitSet originalMessage, int messageLength, BitSet polynomial, int polynomialLength)