Java Number Convert convertMB2GB(int valueMB)

Description

Convert a decimal MB(megabyte) to decimal GB(gigabyte)

Officially, there are 1000 (10^3) megabytes (MB) in a gigabyte (GB)
A Memory manufacturer definition is 1024 (2^10) megabytes per gigabyte, but this is more properly called a gigabinary byte (GiB), sometimes contracted to gibibyte.

License

LGPL

Parameter

Parameter	Description
valueMB	a parameter

Return

Declaration

public static double convertMB2GB(int valueMB)

Method Source Code

//package com.java2s;
/**// w  w  w . j  a  v  a2 s.c  o  m
 * Copyright 2005-2015 titilink
 *
 * The contents of this file are subject to the terms of one of the following
 * open source licenses: Apache 2.0 or LGPL 3.0 or LGPL 2.1 or CDDL 1.0 or EPL
 * 1.0 (the "Licenses"). You can select the license that you prefer but you may
 * not use this file except in compliance with one of these Licenses.
 *
 * You can obtain a copy of the Apache 2.0 license at
 * http://www.opensource.org/licenses/apache-2.0
 *
 * You can obtain a copy of the LGPL 3.0 license at
 * http://www.opensource.org/licenses/lgpl-3.0
 *
 * You can obtain a copy of the LGPL 2.1 license at
 * http://www.opensource.org/licenses/lgpl-2.1
 *
 * You can obtain a copy of the CDDL 1.0 license at
 * http://www.opensource.org/licenses/cddl1
 *
 * You can obtain a copy of the EPL 1.0 license at
 * http://www.opensource.org/licenses/eclipse-1.0
 *
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 *
 * Alternatively, you can obtain a royalty free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * https://github.com/titilink/titilink-framework
 *
 * titilink is a registered trademark of titilink.inc
 */

import java.math.BigDecimal;

public class Main {
    /**
     * A normal decimal kilo is 1000
     */
    private static final BigDecimal DECIMAL_KILO = new BigDecimal("1000");

    /**
     * Convert a decimal MB(megabyte) to decimal GB(gigabyte)<br>
     * <br>
     * <p>
     * Officially, there are <b>1000 (10^3)</b> megabytes (MB) in a gigabyte
     * (GB)<br>
     * A Memory manufacturer definition is <b>1024 (2^10)</b> megabytes per
     * gigabyte, but this is more properly called a <b>gigabinary byte
     * (GiB)</b>, sometimes contracted to <b>gibibyte</b>. <br>
     * <br>
     * 1,000 megabyte (MB) = 1 gigabyte (GB)<br>
     * 1,024 mebibyte (MiB) = 1 gibibyte (GiB)<br>
     *
     * @param valueMB
     * @return GB
     */
    public static double convertMB2GB(int valueMB) {
        return (new BigDecimal(valueMB).divide(DECIMAL_KILO).doubleValue());
    }
}