Java Bit String From toBitString(final byte[] b)

Description

to Bit String

License

Apache License

Declaration

public static String toBitString(final byte[] b) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2013 EMBL-EBI/*from   w  w w . jav a  2  s  . c  om*/
 * 
 * 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.
 ******************************************************************************/

public class Main {
    public static String toBitString(final byte[] b) {
        final char[] bits = new char[8 * b.length];
        for (int i = 0; i < b.length; i++) {
            final byte byteval = b[i];
            int bytei = i << 3;
            int mask = 0x1;
            for (int j = 7; j >= 0; j--) {
                final int bitval = byteval & mask;
                if (bitval == 0) {
                    bits[bytei + j] = '0';
                } else {
                    bits[bytei + j] = '1';
                }
                mask <<= 1;
            }
        }
        return String.valueOf(bits);
    }

    public static String toBitString(final int value) {
        return toBitString(toBytes(value));
    }

    public final static byte[] toBytes(int value) {
        final byte[] bytes = new byte[4];
        bytes[0] = (byte) (value >>> 24);
        bytes[1] = (byte) (value >>> 16);
        bytes[2] = (byte) (value >>> 8);
        bytes[3] = (byte) (value >>> 0);
        return bytes;
    }

    public final static byte[] toBytes(long value) {
        final byte[] bytes = new byte[8];
        for (int i = 0; i < 8; i++)
            bytes[i] = (byte) (value >>> (64 - 8 - i * 8));
        return bytes;
    }
}

Related

1. toBitString(byte[] bytes)
2. toBitString(byte[] bytes, final int digitsPerGroup, final String groupSeparator)
3. toBitString(byte[] data)
4. toBitString(final byte n)
5. toBitString(final byte[] b)
6. toBitString(final double d)
7. toBitString(final StringBuilder sb, final byte value, final int count2)
8. toBitString(int i)
9. toBitString(int meta)