Here you can find the source of is64bitOS()
private static boolean is64bitOS()
//package com.java2s; /*/*from w ww . j a va2s .c om*/ * Copyright (c) 2012, the Dart project authors. * * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html * * 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 { private static boolean is64bitOS() { return getOSArch().contains("64"); } private static String getOSArch() { return System.getProperty("os.arch") + " (" + System.getProperty("os.version") + ")"; } }