Java tutorial
//package com.java2s; /* * Copyright 2011 Peter Karich info@jetsli.de * * 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 { public static final int MB = 1 << 20; public static String getMemInfo() { return "totalMB:" + Runtime.getRuntime().totalMemory() / MB + ", usedMB:" + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / MB; } }