Java Memory Used getUsedMemory()

Description

get Used Memory

License

Open Source License

Declaration

public static long getUsedMemory() 

Method Source Code

//package com.java2s;
/**//w  ww .  j  a v a  2 s .co  m
 * This file is part of GeneMANIA.
 * Copyright (C) 2010 University of Toronto.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

public class Main {
    public static long getUsedMemory() {
        return Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    }

    public static long getUsedMemory(String mu) {
        long ret;
        ret = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
        if ("K".equalsIgnoreCase(mu)) {
            ret = ret / 1024;
        } else if ("M".equalsIgnoreCase(mu)) {
            ret = ret / 1048576;
        } else if ("G".equalsIgnoreCase(mu)) {
            ret = ret / 1073741824;
        }
        return ret;
    }
}

Related

1. getUsedMemory()
2. getUsedMemory()
3. getUsedMemory()
4. getUsedMemory()
5. getUsedMemory()
6. getUsedMemory()
7. getUsedMemory()
8. getUsedMemoryInMb()
9. getUsedMemoryInMegabytes()