Java Number Sign signum(byte[] value)

Description

signum

License

Open Source License

Declaration

public static int signum(byte[] value) 

Method Source Code

//package com.java2s;
/*/*ww  w  .  jav a  2 s  . c o m*/
 * Copyright (c) 2009 Stephan Schloepke and innoQ Deutschland GmbH
 *
 * Stephan Schloepke: http://www.schloepke.de/
 * innoQ Deutschland GmbH: http://www.innoq.com/
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

public class Main {
    public static int signum(byte[] value) {
        if (value.length > 0) {
            if (value[0] < 0) {
                return -1;
            }
            for (int i = 0; i < value.length; i++) {
                if (value[i] != 0) {
                    return 1;
                }
            }
        }
        return 0;
    }

    public static int signum(int[] value) {
        if (value.length > 0) {
            if (value[0] < 0) {
                return -1;
            }
            for (int i = 0; i < value.length; i++) {
                if (value[i] != 0) {
                    return 1;
                }
            }
        }
        return 0;
    }
}

Related

1. signum(Double d)
2. signum(double value)
3. signum(double z)
4. signum(final double x)