How to use shell program parameters in java program??

Question

Hai all,
I am writing a java program which must read strings from a file and must assign to variables.these strings are nothing but the output of ls -l command in shell. i need to have all those 9 fields in a file as variables.
I cant find any method that will read only string.I came accross read line but that is not what i need.So, i thought of writing a shell script and by using awk, storing those 9 fields in 9 variables.. but how to use that variables in java programming???
the shell script is executed by exec() but i need that variables also.
Help me please:(
thanks in advance

Answer 1

i now changed the code... and closed the output file and then i read.Later i splited with the line i read.. but the same happened...
this is the code:
while ((l = inputStream.readLine()) != null)
                    op=new FileOutputStream("op.txt");//output of exec goes to this file
                    String[] cmd= {"/bin/sh","-c","ls -l "+l};
                    rt = Runtime.getRuntime();
                    proc = rt.exec(cmd);
                    // any error message?
                      StreamGobbler errorGobbler = new
                      StreamGobbler(proc.getErrorStream(), "ERR");
                    // any output?
                      StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "",op);
                    errorGobbler.start();
                           outputGobbler.start();
                    op.close();//the file is closed now
                    ip = new BufferedReader(new FileReader("op.txt"));     //now i opened to read
                    p=ip.readLine();
                    a=p.split("\\s");
                    ip.close();
               }where i went wrong?