java中环境变量

System.out.println("Java 运行时环境供应商_java.vendor:" + System.getProperty("java.vendor"));//Java 运行时环境供应商
System.out.println("Java 供应商的 URL_java.vendor.url:"
                + System.getProperty("java.vendor.url"));//Java 供应商的 URL
System.out.println("java 安装目录_java.home:" + System.getProperty("java.home"));//java 安装目录
System.out.println("Java 类格式版本号_java.class.version:"
                + System.getProperty("java.class.version"));//Java 类格式版本号
System.out.println("Java 类路径_java.class.path:"
                + System.getProperty("java.class.path"));//Java 类路径
System.out.println("操作系统的名称_os.name:" + System.getProperty("os.name"));
System.out.println("操作系统的架构_os.arch:" + System.getProperty("os.arch"));
System.out.println("操作系统的版本_os.version:" + System.getProperty("os.version"));
System.out.println("用户的账户名称_user.name:" + System.getProperty("user.name"));
System.out.println("用户的主目录_user.home:" + System.getProperty("user.home"));
System.out.println("用户的当前工作目录_user.dir:" + System.getProperty("user.dir"));
System.out.println("Java 虚拟机规范版本_java.vm.specification.version:"
                + System.getProperty("java.vm.specification.version"));
System.out.println("Java 虚拟机规范供应商_java.vm.specification.vendor:"
                + System.getProperty("java.vm.specification.vendor"));
System.out.println("Java 虚拟机规范名称_java.vm.specification.name:"
                + System.getProperty("java.vm.specification.name"));
System.out.println("Java 虚拟机实现版本_java.vm.version:"
                + System.getProperty("java.vm.version"));
System.out.println("Java 虚拟机实现供应商_java.vm.vendor:"
                + System.getProperty("java.vm.vendor"));
System.out
                .println("Java 虚拟机实现名称_java.vm.name:" + System.getProperty("java.vm.name"));
System.out.println("一个或多个扩展目录的路径_java.ext.dirs:"
                + System.getProperty("java.ext.dirs"));
System.out.println("文件分隔符_file.separator:"
                + System.getProperty("file.separator"));
System.out.println("路径分隔符_path.separator:"
                + System.getProperty("path.separator"));
System.out.println("行分隔符_line.separator:"
                + System.getProperty("line.separator"));13647886666