Pessoal,
Estou com uma dúvida...
Tenho três classes:
RepositorioCliente
ClienteGui
Cliente
Preciso criar um botão no JFrame que faça a exclusão de uma posição do array.
Ou seja, a exclusão consiste em substituir o objeto excluído pelo próximo, caso seja
diferente de null, liberando a última posição ocupado do array, configurando esta posição como
null.
Este botão excluir deverá chamar o método excluir da classe RepositorioCliente, excluindo o objeto da memória.
package TrabalhoPoo;
public class Cliente {
private String cpf;
private String nome;
private String endereco;
public String getCpf() {
return cpf;
}
public void setCpf(String cpf) {
this.cpf = cpf;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getEndereco() {
return endereco;
}
public void setEndereco(String endereco) {
this.endereco = endereco;
}
/**
*
* @return
*/
@Override
public String toString() {
return nome + " - " + cpf;
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package TrabalhoPoo;
import javax.swing.JOptionPane;
/**
*
* @author 71201661
*/
public class ClienteGui extends javax.swing.JFrame {
private RepositorioCliente rep;
/**
* Creates new form Cliente
*/
public ClienteGui() {
initComponents();
String valorDigitado = JOptionPane.showInputDialog("Digite algum valor");
//JOptionPane.showMessageDialog(null, valorDigitado);
rep = new RepositorioCliente(Integer.parseInt(valorDigitado));
}
/**
* 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() {
jLabel1 = new javax.swing.JLabel();
cpf = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
nome = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
endereco = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jLabel4 = new javax.swing.JLabel();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
excluir = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("CPF:");
jLabel2.setText("Nome:");
jLabel3.setText("End:");
jButton1.setText("Salvar");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jLabel4.setFont(new java.awt.Font("Tahoma", 0, 24)); // NOI18N
jLabel4.setText("Cadastro Cliente");
jButton2.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N
jButton2.setText("Consultar");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setText("Limpar");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
excluir.setText("Excluir");
excluir.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
excluirActionPerformed(evt);
}
});
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(56, 56, 56)
.addComponent(jLabel4))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel3)
.addComponent(jLabel2)
.addComponent(jLabel1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(cpf, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(nome)
.addComponent(endereco)))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(excluir)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel4)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(cpf, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(nome, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(endereco, 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(jButton1)
.addComponent(jButton3)
.addComponent(excluir))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
Cliente c = new Cliente();
c.setCpf(cpf.getText());
c.setEndereco(endereco.getText());
c.setNome(nome.getText());
//JOptionPane.showMessageDialog(null, c);
rep.cadastrar(c);
cpf.setText("");
endereco.setText("");
nome.setText("");
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String cpfDigitado = cpf.getText();
Cliente cliente = rep.consultar(cpfDigitado);
if (cliente != null){
nome.setText(cliente.getNome());
endereco.setText(cliente.getEndereco());
} else {
JOptionPane.showMessageDialog(null, "Cliente não encontrado");
}
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
cpf.setText("");
endereco.setText("");
nome.setText("");
}
private void excluirActionPerformed(java.awt.event.ActionEvent evt) {
Cliente c = new Cliente();
rep.deletar(c);
cpf.setText("");
endereco.setText("");
nome.setText("");
}
/**
* @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(ClienteGui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(ClienteGui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(ClienteGui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(ClienteGui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new ClienteGui().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JTextField cpf;
private javax.swing.JTextField endereco;
private javax.swing.JButton excluir;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JTextField nome;
// End of variables declaration
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package TrabalhoPoo;
import javax.swing.JOptionPane;
/**
*
* @author 71201661
*/
public class RepositorioCliente {
private Cliente clientes[];
//private Cliente clientes1[];
private int posicao_vazia = 0;
public RepositorioCliente (int numeroClientes){
clientes = new Cliente[numeroClientes];
//clientes1 = new Cliente[numeroClientes];
}
// private ClienteGui rep = new ClienteGui();
public void cadastrar(Cliente c){
if (posicao_vazia < clientes.length){
clientes[posicao_vazia] = c;
posicao_vazia++;
} else {
JOptionPane.showMessageDialog(null, "Sem espaço na memória");
}
//if (posicao_vazia < clientes1.length) {
// clientes1[posicao_vazia] = c;
// posicao_vazia++;
//}
}
public Cliente consultar (String cpf){
Cliente clienteEncontrado = null;
for (int i = 0; i < clientes.length; i++){
Cliente c = clientes[i];
//equals testar conteúdo
if (c != null && c.getCpf().equals(cpf)) {
clienteEncontrado = clientes[i];
}
}
return clienteEncontrado;
}
public void deletar(String cpf){
for(int i=0; i<clientes.length; i++){ // andar no vetor
Cliente c = clientes[i]; // cliente cadastrado na posição i
if(c != null && c.getCpf().equals(cpf)){ // se cliente for diferente de nulo e o cpf for igual o digitado
clientes[i] = clientes[i+1];
}//if
}//for
/*for(int i=0; i<clientes.length -1; i++){
if(clientes[i] == null){
clientes[i] = clientes[i+1];
//JOptionPane.showMessageDialog(null, clientes[i]);
}
}*/
}
}