Here you can find the source of is64BitVM()
public static Boolean is64BitVM()
//package com.java2s; /*//from w ww. j a v a 2s .c om * This file is part of FTB Launcher. * * Copyright ? 2012-2013, FTB Launcher Contributors <https://github.com/Slowpoke101/FTBLaunch/> * FTB Launcher is 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 { /** * Used to get check if JVM is 64-bit * @return true if 64-bit JVM */ public static Boolean is64BitVM() { Boolean bits64; bits64 = System.getProperty("sun.arch.data.model").equals("64"); return bits64; } }