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(); 
      } 
  } 
}