Returns the path and name of the java launcher in which this program is executed. - Java java.lang

Java examples for java.lang:System

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Description

Returns the path and name of the java launcher in which this program is executed.

Demo Code

/*******************************************************************************
 * Copyright (c) 2014 Karlsruhe Institute of Technology, Germany
 *                    Technical University Darmstadt, Germany
 *                    Chalmers University of Technology, Sweden
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:/*from w  w w  . j  a va  2s.  co m*/
 *    Technical University Darmstadt - initial API and implementation and/or initial documentation
 *******************************************************************************/
//package com.java2s;
import java.io.File;

public class Main {
    public static void main(String[] argv) throws Exception {
        System.out.println(getJavaLauncher());
    }

    /**
     * Returns the path and name of the java launcher in which this program is executed.
     * @return The path and name of the java launcher in which this program is executed.
     */
    public static String getJavaLauncher() {
        final String launcher = "java";
        String java = System.getProperty("sun.boot.library.path");
        if (java != null && !java.isEmpty()) {
            File folder = new File(java);
            if (folder.isDirectory()) {
                return new File(folder, launcher).getAbsolutePath();
            } else {
                return launcher;
            }
        } else {
            return launcher;
        }
    }
}

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