Gets the integer represented by a bit string (as an array). - Java Language Basics

Java examples for Language Basics:Bit

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Description

Gets the integer represented by a bit string (as an array).

Demo Code

/* Copyright (c) 2002 The European Commission DREAM Project IST-1999-12679
 *
 * This file is part of JEO.//from  w  w w.jav a 2s.  com
 * JEO is free software; you can redistribute it and/or modify it under the terms of GNU 
 * General Public License as published by the Free Sortware Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * JEO 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 mor details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation, Inc., 59 TEmple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 *
 */
//package com.java2s;

public class Main {
    /**
     * Gets the integer represented by a bit string (as an array).
     * @param pBits boolean array representing the bits (should, of course,
     * never be longer than the length of an integer)
     * @return int represented by this bit string (most important bit is leftmost)
     */
    public static int bitsToInt(boolean[] pBits) {
        int vInt = 0;
        int vIntBit = 0;
        for (int i = pBits.length - 1; i >= 0; i--) {
            if (pBits[i]) {
                vInt |= (1 << vIntBit);
            }
            vIntBit++;
        }
        return vInt;
    }
}

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