Java Integer Create toInteger(final String bitString)

Description

Convert a bit string into an integer value.

License

Open Source License

Parameter

Parameter	Description
bitString	The string to convert.

Return

The converted value.

Declaration

public static int toInteger(final String bitString) 

Method Source Code

//package com.java2s;
/*/*from w  w w.j  av a  2 s  .c  om*/
 * Copyright (C) 2015  Hugh Eaves
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * Convert a bit string into an integer value.
     *
     * @see BitStringUtil#toLong(String)
     *
     * @param bitString
     *            The string to convert.
     * @return The converted value.
     */
    public static int toInteger(final String bitString) {
        assert (bitString.length() <= Integer.SIZE);

        return (int) toLong(bitString);
    }

    /**
     * Convert a bit string into a long value. Any non zero or one characters in
     * the string are ignored.
     *
     * @param bitString
     *            The string to convert.
     * @return The converted value.
     */
    public static long toLong(final String bitString) {
        assert (bitString.length() <= Long.SIZE);

        long value = 0;
        for (final char ch : bitString.toCharArray()) {
            if (ch == '1') {
                value = value << 1;
                value = value | 1;
            } else if (ch == '0') {
                value = value << 1;
            }
        }
        return value;
    }
}

Related

1. toInteger(E val)
2. toInteger(final byte[] data)
3. toInteger(final Double value)
4. toInteger(final Object o)
5. toInteger(final Object value)
6. toInteger(final String integerAsString)
7. toInteger(final String value)
8. toInteger(final String value)
9. toInteger(int value)