Thread: Showing exception

when i call the see method in another class by a try-catch statement i m getting the exception message
see method is called by an actionlistener of an JButton...plz help me fix this

public class Check{
    private  Scanner in;
    String a, b, c, d, m2;
    //opening file
    public void openFile(){
        try{
            in = new Scanner(new File("couple.txt"));
        }catch(Exception e){
            JOptionPane.showMessageDialog(null,"ERROR 002");
        }
    }
    //getting data from file
    public  void readFile(){
        while(in.hasNext()){
            a = in.next();
            b = in.next();
            c = in.next();
            d = in.next();
            m2 = in.next();
        }
    }
    //checking for couple(emailing) OR recording
    public void see(String cn, String ce, String un, String ue,String m1)throws IOException{
        if (b == ce && d == ue) {
            //we have a coupple
            email e = new email();
            e.Sendmail(ce,un,m1);
            e.Sendmail(ue,cn,m2);
        }else{
            Record r = new Record();
            r.addRecords(cn,ce,un,ue,m1);
        }
    }
    //closing file
    public void closeFile(){
        in.close();
    }
}

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It would also be helpful if you'd post runnable code that demonstrated the error or at least includes all of the parts mentioned in the error message.