学步园

Properties props=System.getProperties();//系统属性
System.out.println("Java的运行环境版本：" + props.getProperty("java.version")); 
System.out.println("Java的运行环境供应商:" + props.getProperty("java.vendor")); 
System.out.println("Java供应商的URL:" + props.getProperty("java.vendor.url")); 
System.out.println("Java的安装路径:" + props.getProperty("java.home")); 
System.out.println("Java的虚拟机规范版本:"+props.getProperty("java.vm.specification.version"));
System.out.println("Java的虚拟机规范供应商:"+props.getProperty("java.vm.specification.vendor"));
System.out.println("Java的虚拟机规范名称:" + props.getProperty("java.vm.specification.name"));
System.out.println("Java的虚拟机实现版本:" + props.getProperty("java.vm.version"));
System.out.println("Java的虚拟机实现供应商:"+props.getProperty("java.vm.vendor"));
System.out.println("Java的虚拟机实现名称:" + props.getProperty("java.vm.name"));
System.out.println("Java运行时环境规范版本:" + props.getProperty("java.specification.version")); 
System.out.println("Java运行时环境规范供应商:"+props.getProperty("java.specification.vender"));
System.out.println("Java运行时环境规范名称:" + props.getProperty("java.specification.name"));
System.out.println("Java的类格式版本号:" + props.getProperty("java.class.version"));
System.out.println("Java的类路径:" + props.getProperty("java.class.path"));
System.out.println("加载库时搜索的路径列表:" + props.getProperty("java.library.path"));
System.out.println("默认的临时文件路径:" + props.getProperty("java.io.tmpdir")); 

System.out.println("一个或多个扩展目录的路径:" + props.getProperty("java.ext.dirs"));
System.out.println("操作系统的名称:" + props.getProperty("os.name")); 
System.out.println("操作系统的构架:" + props.getProperty("os.arch")); 
System.out.println("操作系统的版本:" + props.getProperty("os.version"));
System.out.println("文件分隔符:"+props.getProperty("file.separator"));
//在unix系统中是"／" 
System.out.println("路径分隔符:" + props.getProperty("path.separator"));
//在unix系统中是":" 
System.out.println("行分隔符:" + props.getProperty("line.separator"));
//在unix系统中是"/n" 
System.out.println("用户的账户名称:" + props.getProperty("user.name")); 
System.out.println("用户的主目录:" + props.getProperty("user.home")); 
System.out.println("用户的当前工作目录:" + props.getProperty("user.dir"));