Java - Consulta con programa

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.StringTokenizer;

import javax.swing.JOptionPane;

/**

 *

 * @author Jonathan Alejandro Gutiérrez Hernández

 */

public class relacionesBinarias extends javax.swing.JFrame implements ActionListener{

    /**

     * Creates new form relacionesBinarias

     */

    public relacionesBinarias() {

        initComponents();

        JBEvaluar.addActionListener(this);

    }

    private void Evaluar(){

        a = JTFA.getText();

        b = JTFB.getText();

        f = JTFF.getText();

        StringTokenizer a1=new StringTokenizer(a, ",");

        StringTokenizer b1=new StringTokenizer(b, ",");

        StringTokenizer f1=new StringTokenizer(f, ",");

        int nDatos =a1.countTokens();

        while(f1.hasMoreElements()){

            tok1=f1.nextToken();

        }

            while(a1.hasMoreElements()){

                tok=a1.nextToken();

                while(b1.hasMoreElements()){

                    sumaDeCadenas =" "+ tok+b1.nextToken();

                    System.out.println(sumaDeCadenas);

                }

            }

            if(tok1.contains(sumaDeCadenas)){

                System.out.println(tok1);

            }

    }

    /**

     * This method is called from within the constructor to initialize the form.

     * WARNING: Do NOT modify this code. The content of this method is always

     * regenerated by the Form Editor.

     */

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          

    private void initComponents() {

        JBEvaluar = new javax.swing.JButton();

        JTFA = new javax.swing.JTextField();

        JTFB = new javax.swing.JTextField();

        JTFF = new javax.swing.JTextField();

        jLabel1 = new javax.swing.JLabel();

        jLabel2 = new javax.swing.JLabel();

        jLabel3 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        setTitle("Tipos de Correspondencias");

        JBEvaluar.setText("Evaluar");

        JBEvaluar.setToolTipText("");

        JTFB.setHorizontalAlignment(javax.swing.JTextField.LEFT);

        jLabel1.setText("A");

        jLabel2.setText("B");

        jLabel3.setText("f");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());

        getContentPane().setLayout(layout);

        layout.setHorizontalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(layout.createSequentialGroup()

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                    .addGroup(layout.createSequentialGroup()

                        .addGap(155, 155, 155)

                        .addComponent(JBEvaluar))

                    .addGroup(layout.createSequentialGroup()

                        .addGap(30, 30, 30)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)

                            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 7, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addGroup(layout.createSequentialGroup()

                                .addComponent(jLabel3)

                                .addGap(2, 2, 2))

                            .addComponent(jLabel2))

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)

                            .addComponent(JTFA, javax.swing.GroupLayout.DEFAULT_SIZE, 279, Short.MAX_VALUE)

                            .addComponent(JTFB)

                            .addComponent(JTFF))))

                .addContainerGap(74, Short.MAX_VALUE))

        );

        layout.setVerticalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

                .addGap(56, 56, 56)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                    .addComponent(JTFA, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addComponent(jLabel1))

                .addGap(48, 48, 48)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                    .addComponent(JTFB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addComponent(jLabel2))

                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 53, Short.MAX_VALUE)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                    .addComponent(JTFF, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addComponent(jLabel3))

                .addGap(31, 31, 31)

                .addComponent(JBEvaluar)

                .addGap(29, 29, 29))

        );

        pack();

    }// </editor-fold>                        

    /**

     * @param args the command line arguments

     */

    public static void main(String args[]) {

        /* Set the Nimbus look and feel */

        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">

        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.

         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 

         */

        try {

            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {

                if ("Nimbus".equals(info.getName())) {

                    javax.swing.UIManager.setLookAndFeel(info.getClassName());

                    break;

                }

            }

        } catch (ClassNotFoundException ex) {

            java.util.logging.Logger.getLogger(relacionesBinarias.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (InstantiationException ex) {

            java.util.logging.Logger.getLogger(relacionesBinarias.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (IllegalAccessException ex) {

            java.util.logging.Logger.getLogger(relacionesBinarias.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (javax.swing.UnsupportedLookAndFeelException ex) {

            java.util.logging.Logger.getLogger(relacionesBinarias.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        }

        //</editor-fold>

        /* Create and display the form */

        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {

                new relacionesBinarias().setVisible(true);

            }

        });

    }

    // Variables declaration - do not modify                     

    private javax.swing.JButton JBEvaluar;

    private javax.swing.JTextField JTFA;

    private javax.swing.JTextField JTFB;

    private javax.swing.JTextField JTFF;

    private javax.swing.JLabel jLabel1;

    private javax.swing.JLabel jLabel2;

    private javax.swing.JLabel jLabel3;

    // End of variables declaration                   

    private String a;

    private String b;

    private String f;

    private String sumaDeCadenas;

    private String tok;

    private String tok1;

    private String tok2;

    @Override

    public void actionPerformed(ActionEvent e) {

        Object fuente= e.getSource();

        if(fuente==JBEvaluar){

            Evaluar();

        }else{

            JOptionPane.showConfirmDialog(relacionesBinarias.this, "No es una correspondencia");

        }

    }

}