Conciliar Swing com o código

Olá pessoal,

Estou com um pequeno problema escrevi algumas linha de e fiz um inversor de link e com duas classes e uma interface gráfica bem básica feita no netbens, agora não sei como eu faço para fazer a junção de código com as telas alguém por favor pode me ajudar ?

Segue os Códigos :

Classe com o núcleo do que faz a minha aplicação :

public class LinkInversor {
	public static void main(String[] args) {

		StringBuffer inverte = new StringBuffer("");
		inverte.reverse();

		System.out.println("Seu link Invertido -> " + inverte);

	}
}

Classe com as telas :

/**
 *
 * @author Marcos
 */
public class Janela extends javax.swing.JFrame {

  private static final long serialVersionUID = 1L;

   
    public Janela() {
        initComponents();
    }
   
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        Ajuda_jLabel = new javax.swing.JLabel();
        Inverter_jButton = new javax.swing.JButton();
        LinkInv_jTextField = new javax.swing.JTextField();
        LinkInv_jLabel = new javax.swing.JLabel();
        LinkNormal_jTextField = new javax.swing.JTextField();
        LinkNormal_jLabel = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);


        Inverter_jButton.setText("Inverter");

        LinkInv_jTextField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                LinkInv_jTextFieldActionPerformed(evt);
            }
        });

        LinkInv_jLabel.setText("Cole o Link Invertido");

        LinkNormal_jTextField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                LinkNormal_jTextFieldActionPerformed(evt);
            }
        });

        LinkNormal_jLabel.setText("Seu Link");

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(LinkInv_jTextField, javax.swing.GroupLayout.DEFAULT_SIZE, 523, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(LinkNormal_jTextField, javax.swing.GroupLayout.DEFAULT_SIZE, 523, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(142, 142, 142)
                        .addComponent(Inverter_jButton, javax.swing.GroupLayout.PREFERRED_SIZE, 256, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(Ajuda_jLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(241, 241, 241)
                        .addComponent(LinkNormal_jLabel))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(220, 220, 220)
                        .addComponent(LinkInv_jLabel)))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(Ajuda_jLabel)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(LinkInv_jLabel)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(LinkInv_jTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(23, 23, 23)
                .addComponent(LinkNormal_jLabel)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(LinkNormal_jTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(Inverter_jButton)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>

    private void LinkInv_jTextFieldActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    private void LinkNormal_jTextFieldActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new Janela().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JLabel Ajuda_jLabel;
    private javax.swing.JButton Inverter_jButton;
    private javax.swing.JLabel LinkInv_jLabel;
    private javax.swing.JTextField LinkInv_jTextField;
    private javax.swing.JLabel LinkNormal_jLabel;
    private javax.swing.JTextField LinkNormal_jTextField;
    private javax.swing.JPanel jPanel1;
    // End of variables declaration

}

Grato desde já

Att,

Marcos da Conceição

Primeiro seria necessário corrigir a classe LinkInversor:

public class LinkInversor {
    public static String InverterTexto(String texto) {
            StringBuffer inverte = new StringBuffer(texto);
	    return inverte.reverse().toString();
    }
}

Neste exemplo optei por um método estático, porém existem outras forma de implementação.

Depois, seria necessário adicionar um listener no botão Inverter:

Inverter_jButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                Inverter_jButtonActionPerformed(evt);
            }
        });

E por fim, chamar sua classe para inverter o texto:

private void Inverter_jButtonActionPerformed(java.awt.event.ActionEvent evt) {
        LinkNormal_jTextField.setText(LinkInversor.InverterTexto(LinkInv_jTextField.getText()));
    }

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