java执行ping命令

public static void get() throws IOException{
         String address="10.132.118.110";  

            Process process = Runtime.getRuntime().exec("ping "+address);
            InputStreamReader r = new InputStreamReader(process.getInputStream());
            LineNumberReader returnData = new LineNumberReader(r);  

            String returnMsg="";
            String line = "";
            while ((line = returnData.readLine()) != null) {
                System.out.println(line);
                returnMsg += line;
            }  

            if(returnMsg.indexOf("100% loss")!=-1){
                System.out.println("与 " +address +" 连接不畅通.");
            }
            else{
                System.out.println("与 " +address +" 连接畅通.");
            }
    }