Here you can find the source of getFreeMemoryForAppInKB()
public static long getFreeMemoryForAppInKB()
//package com.java2s; /**//from w w w . j av a2s. co m * Copyright (C) 2007 Asterios Raptis * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { /** * Gets the free memory in kilobytes is available for the application. * * @return Returns the free memory in kilobytes is available for the application. */ public static long getFreeMemoryForAppInKB() { return (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / 1024; } }