问如何在java中获取进程结束状态？

EN

command = "cmd.exe /c start /min doxygen " + strDoxyfilePath;   
System.out.println("command : " + command);

//pass the command to execute
Process p=Runtime.getRuntime().exec(command);

BufferedReader br = new BufferedReader(new InputStreamReader
    (p.getInputStream(), "UTF-8")); //read output of doxygen
String line = null;
while ((line = br.readLine()) != null){
    System.out.println("I M HERE: "+line);
}