converts byte array to integer - Java File Path IO

Java examples for File Path IO:Byte Array

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Description

converts byte array to integer

Demo Code

/*/*from  w  w  w  .java  2 s  .c om*/
 * Collab desktop - Software for shared drawing via internet in real-time
 * Copyright (C) 2012 Martin Indra <aktive@seznam.cz>
 *
 * This file is part of Collab desktop.
 *
 * Collab desktop 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.
 *
 * Collab desktop 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 Collab desktop.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        byte[] b = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        System.out.println(byteArrayToInt(b));
    }

    /**
     * converts byte array to integer
     *
     * @param b array for conversion, contains four bytes
     * @return integer coded in array
     */
    public static final int byteArrayToInt(byte[] b) {
        return (b[0] << 24) + ((b[1] & 0xFF) << 16) + ((b[2] & 0xFF) << 8)
                + (b[3] & 0xFF);
    }
}

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