System.getProperty

package com.test.system;
public class TestSystemStuff {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("java_vendor:" + System.getProperty("java.vendor"));     
    System.out.println("java_vendor_url:"     
             + System.getProperty("java.vendor.url"));     
    System.out.println("java_home:" + System.getProperty("java.home"));     
    System.out.println("java_class_version:"     
             + System.getProperty("java.class.version"));     
    System.out.println("java_class_path:"     
            + System.getProperty("java.class.path"));     
    System.out.println("os_name:" + System.getProperty("os.name"));     
    System.out.println("os_arch:" + System.getProperty("os.arch"));     
    System.out.println("os_version:" + System.getProperty("os.version"));     
    System.out.println("user_name:" + System.getProperty("user.name"));     
    System.out.println("user_home:" + System.getProperty("user.home"));     
    System.out.println("user_dir:" + System.getProperty("user.dir"));     
    System.out.println("java_vm_specification_version:"     
            + System.getProperty("java.vm.specification.version"));     
    System.out.println("java_vm_specification_vendor:"     
            + System.getProperty("java.vm.specification.vendor"));     
    System.out.println("java_vm_specification_name:"     
            + System.getProperty("java.vm.specification.name"));     
    System.out.println("java_vm_version:"     
            + System.getProperty("java.vm.version"));     
    System.out.println("java_vm_vendor:"     
            + System.getProperty("java.vm.vendor"));     
    System.out     
            .println("java_vm_name:" + System.getProperty("java.vm.name"));     
    System.out.println("java_ext_dirs:"     
            + System.getProperty("java.ext.dirs"));     
    System.out.println("file_separator:"     
            + System.getProperty("file.separator"));     
    System.out.println("path_separator:"     
            + System.getProperty("path.separator"));     
    System.out.println("line_separator:"     
            + System.getProperty("line.separator"));     
}
}