JAVA如何调用Shell脚本

#!/bin/sh echo Begin word cluster /home/felven/word2vec/word2vec -train /home/felven/word2vec/resultbig.txt -output /home/felven/word2vec/classes.csv -cbow 0 -size 200 -window 5 -negative 0 -hs 1 -sample 1e-3 -threads 12 -classes 2000 echo The word classes were saved to file classes.csv 

import java.io.BufferedReader; import java.io.InputStreamReader;  public class RunShell {   public static void main(String[] args){     try {       String shpath="/home/felven/word2vec/demo-classes.sh";       Process ps = Runtime.getRuntime().exec(shpath);       ps.waitFor();        BufferedReader br = new BufferedReader(new InputStreamReader(ps.getInputStream()));       StringBuffer sb = new StringBuffer();       String line;       while ((line = brreadLine()) != null) {         sb.append(line).append("/n");       }       String result = sbtoString();       System.out.println(result);       }      catch (Exception e) {       e.printStackTrace();       }   } }