import java.io.*;
   import java.util.*;
 
   public class DoProcessBuilder {
     public static void main(String args[]) throws IOException {
 
       if (args.length <= 0) {
         System.err.println("Need command to run");
         System.exit(-1);
       }
 
       Process process = new ProcessBuilder(args).start();
       InputStream is = process.getInputStream();
       InputStreamReader isr = new InputStreamReader(is);
       BufferedReader br = new BufferedReader(isr);
       String line;
 
       System.out.printf("Output of running %s is:", 
          Arrays.toString(args));
 
       while ((line = br.readLine()) != null) {
         System.out.println(line);
       }
 
     }
    }