Java执行CMD命令并等待返回结果

执行命令部分

        try {
            String command = "java -version";
            Process p = Runtime.getRuntime().exec(command);
            StreamCaptureThread errorStream = new StreamCaptureThread(p.getErrorStream());
            StreamCaptureThread outputStream = new StreamCaptureThread(p.getInputStream());
            new Thread(errorStream).start();
            new Thread(outputStream).start();
            p.waitFor();

            result = command + "\n" + outputStream.output.toString()
                    + errorStream.output.toString();
            System.out.print(result);
        } catch (Exception e) {
            e.printStackTrace();
        }        try {
            String co