Configurable Access Control : Permission File « Security « Java Tutorial

1. Java Tutorial
2. Security
3. Permission File

import java.io.FileInputStream;

public class MainClass {
  public static void main(String[] args) throws Exception {
    String operatingSystem = (String) System.getProperty("os.name");
    String javaVersion = (String) System.getProperty("java.version");

    String javaDirectory = (String) System.getProperty("java.home");
    String userHomeDir = (String) System.getProperty("user.home");
    String myFile = (String) System.getProperty("myFile");
    FileInputStream fin = new FileInputStream(myFile);
  }
}