Java获取进程列表的方法

Runtime runtime = Runtime.getRuntime();
try {
Process p = runtime.exec("tasklist");
System.out.println(p);
BufferedReader bw = new BufferedReader(new InputStreamReader(p
.getInputStream()));
String s;
while ((s=bw.readLine())!=null) {
System.out.println(s);
}
} catch (IOException e) {
e.printStackTrace();
}