Here you can find the source of is64BitOS()
public static boolean is64BitOS()
//package com.java2s; /*/* w w w . j a v a 2 s .co m*/ * Autopsy Forensic Browser * * Copyright 2012-2014 Basis Technology Corp. * Contact: carrier <at> sleuthkit <dot> org * * 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 { /** * Attempts to determine whether the operating system is a 64-bit operating * system. May not be completely reliable for non-Windows operating systems. * * @return True if the operating system is definitely a 64-bit operating * system, false otherwise. */ public static boolean is64BitOS() { if (System.getProperty("os.name").contains("Windows")) { //NON-NLS return (System.getenv("ProgramFiles(x86)") != null); //NON-NLS } else { return (System.getProperty("os.arch").contains("64")); //NON-NLS } } }