Adicionar um JPanel em um JFrame

Estou com problemas em adicionar um JPane, em um JFrame, tipo criei uma janela frame “Principal”, e uma outra classe “PainelAdicionar”, só que eu quero que aparece o painelAdicionar, quando eu apertar um botão na frame, isso que nao estou conseguindo…

Código do botao para ser precionado

jButton1.addActionListener(
```
new ActionListener(){
```

public void actionPerformed( ActionEvent e ) {

PainelAdicionar   adicionar = new PainelAdicionar();

```
add(adicionar);
```
```
repaint();
```
```
validate();
```
```
}
```
```
}
```
```
);
```

Codigo (inteiro) da calsse PainelAdicionar

public class PainelAdicionar extends javax.swing.JPanel {
```
private javax.swing.JButton jButton1;
```
```
private javax.swing.JButton jButton2;
```
```
private javax.swing.JLabel jLabel1;
```
```
private javax.swing.JLabel jLabel2;
```
```
private javax.swing.JLabel jLabel3;
```
```
private javax.swing.JLabel jLabel4;
```
```
private javax.swing.JLabel jLabel5;
```
```
private javax.swing.JLabel jLabel6;
```

private javax.swing.JTextField jTextField1;

private javax.swing.JTextField jTextField2;

private javax.swing.JTextField jTextField3;

private javax.swing.JTextField jTextField4;

private javax.swing.JTextField jTextField5;

private javax.swing.JTextField jTextField6;

```
private JPanel j;
```
```
// End of variables declaration
```
```
public PainelAdicionar() {
```
```
j=new JPanel();
```
```
jLabel1 = new javax.swing.JLabel();
```

jTextField1 = new javax.swing.JTextField();

```
jButton1 = new javax.swing.JButton();
```
```
jLabel2 = new javax.swing.JLabel();
```
```
jLabel3 = new javax.swing.JLabel();
```
```
jLabel4 = new javax.swing.JLabel();
```
```
jLabel5 = new javax.swing.JLabel();
```
```
jLabel6 = new javax.swing.JLabel();
```

jTextField2 = new javax.swing.JTextField();

jTextField3 = new javax.swing.JTextField();

jTextField4 = new javax.swing.JTextField();

jTextField5 = new javax.swing.JTextField();

jTextField6 = new javax.swing.JTextField();

```
jButton2 = new javax.swing.JButton();
```

jLabel1.setText("Escreva o nome do Cliente informando o nome, mês e ano. Ex: xxx(02/2010)");

```
jButton1.setText("OK");
```
```
jLabel2.setText("Data:");
```
```
jLabel3.setText("Nome do serviço:");
```
```
jLabel4.setText("Referência:");
```
```
jLabel5.setText("Preço:");
```
```
jLabel6.setText("Numero Registro:");
```
```
jButton2.setText("Adicionar");
```

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

```
this.setLayout(layout);
```
```
layout.setHorizontalGroup(
```

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

.addGroup(layout.createSequentialGroup()

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

.addGroup(layout.createSequentialGroup()

```
.addGap(144, 144, 144)
```

.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 158, javax.swing.GroupLayout.PREFERRED_SIZE)

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

```
.addComponent(jButton1))
```

.addGroup(layout.createSequentialGroup()

```
.addGap(57, 57, 57)
```
```
.addComponent(jLabel1)))
```
```
.addContainerGap(43, Short.MAX_VALUE))
```

.addGroup(layout.createSequentialGroup()

```
.addGap(98, 98, 98)
```

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

```
.addComponent(jLabel3)
```
```
.addComponent(jLabel4)
```
```
.addComponent(jLabel5)
```
```
.addComponent(jLabel2)
```
```
.addComponent(jLabel6))
```

.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 122, Short.MAX_VALUE)

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

```
.addComponent(jTextField2)
```
```
.addComponent(jTextField3)
```
```
.addComponent(jTextField6)
```
```
.addComponent(jTextField5)
```

.addComponent(jTextField4, javax.swing.GroupLayout.DEFAULT_SIZE, 76, Short.MAX_VALUE))

```
.addGap(90, 90, 90))
```

.addGroup(layout.createSequentialGroup()

```
.addGap(190, 190, 190)
```
```
.addComponent(jButton2)
```

.addContainerGap(201, Short.MAX_VALUE))

```
);
```
```
layout.setVerticalGroup(
```

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

.addGroup(layout.createSequentialGroup()

```
.addGap(45, 45, 45)
```
```
.addComponent(jLabel1)
```
```
.addGap(18, 18, 18)
```

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

.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

```
.addComponent(jButton1))
```
```
.addGap(43, 43, 43)
```

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

```
.addComponent(jLabel6)
```

.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

```
.addGap(18, 18, 18)
```

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

```
.addComponent(jLabel2)
```

.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

```
.addGap(18, 18, 18)
```

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

```
.addComponent(jLabel3)
```

.addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

```
.addGap(18, 18, 18)
```

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

```
.addComponent(jLabel4)
```

.addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

```
.addGap(18, 18, 18)
```

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

```
.addComponent(jLabel5)
```

.addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

```
.addGap(45, 45, 45)
```
```
.addComponent(jButton2)
```
```
.addContainerGap(34, Short.MAX_VALUE))
```
```
);
```
```
}
```

se alguem puder ajudar ae…

obs: fiz essa interface no netbeans.

1 Resposta

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