Here you can find the source of getJavaTotalMemory()
public static long getJavaTotalMemory()
//package com.java2s; /*/*from w w w. j a va 2 s . co m*/ * Copyright 2010-2013 Institut Pasteur. * * This file is part of Icy. * * Icy 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. * * Icy 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 Icy. If not, see <http://www.gnu.org/licenses/>. */ public class Main { /** * Return total memory currently in use by the JVM */ public static long getJavaTotalMemory() { return Runtime.getRuntime().totalMemory(); } }