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Agenda em Java
Código:
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class agenda01 extends JFrame implements ActionListener
{
private JButton bt1,bt2,bt3,bt4,bt5,bt6,bt7,bt8,bt9,bt10;
private JPanel pn,pn1,pn2;
private JTextField tf,tf1,tf2,tf3;
private FlowLayout fl;
private String[][] agenda = new String[100][4];
private int indice=0,indic=1;
private int nome=0,end=1,tel=2,cep=3;
agenda01()
{
setSize(420,200);
setTitle("Agenda - Índice da Matriz Atual: "+ indic);
bt1 = new JButton("Nome");
bt2 = new JButton("Endereco");
bt3 = new JButton("Telefone");
bt4 = new JButton("CEP");
bt5 = new JButton("Incluir");
bt6 = new JButton("Excluir");
bt7 = new JButton("Editar");
bt8 = new JButton("<<");
bt9 = new JButton(">>");
bt10 = new JButton("Sair");
tf = new JTextField("");
tf1 = new JTextField("");
tf2 = new JTextField("");
tf3 = new JTextField("");
pn = new JPanel();
pn1 = new JPanel();
pn2 = new JPanel();
fl = new FlowLayout();
BorderLayout lay = new BorderLayout();
getContentPane().setLayout(lay);
getContentPane().add(pn,BorderLayout.WEST);
getContentPane().add(pn1,BorderLayout.CENTER);
getContentPane().add(pn2,BorderLayout.SOUTH);
pn.setLayout(new GridLayout(4,1));
pn1.setLayout(new GridLayout(4,1));
pn2.setLayout(fl);
pn.add(bt1);
pn.add(bt2);
pn.add(bt3);
pn.add(bt4);
pn1.add(tf);
pn1.add(tf1);
pn1.add(tf2);
pn1.add(tf3);
pn2.add(bt5);
pn2.add(bt6);
pn2.add(bt7);
pn2.add(bt8);
pn2.add(bt9);
pn2.add(bt10);
bt5.addActionListener(this);
bt6.addActionListener(this);
bt7.addActionListener(this);
bt8.addActionListener(this);
bt9.addActionListener(this);
bt10.addActionListener(this);
iniciar();
}
public void iniciar()
{
for(int i=0;i<100;i++)
for(int j=0;j<4;j++)
agenda[i][j] = "";
tf_set_enable(false);
bt_verificar();
}
public void bt_verificar()
{
if(agenda[indice][nome] == "")
{
bt7.setEnabled(false);
bt6.setEnabled(false);
}
else
{
bt7.setEnabled(true);
bt6.setEnabled(true);
}
}
public void tf_set_enable(boolean x)
{
if(x)
{
tf.setEnabled(true);
tf1.setEnabled(true);
tf2.setEnabled(true);
tf3.setEnabled(true);
}
else
{
tf.setEnabled(false);
tf1.setEnabled(false);
tf2.setEnabled(false);
tf3.setEnabled(false);
}
}
public void set_title(String x)
{
if(x == "set")
{
indic = indice + 1;
setTitle("Agenda - Índice da Matriz Atual: "+ indic);
}
else
if(x == "++")
{
indic++;
setTitle("Agenda - Índice da Matriz Atual: "+ indic);
}
else
if(x == "--")
{
indic--;
setTitle("Agenda - Índice da Matriz Atual: "+ indic);
}
}
public void incluir_salvar()
{
if(bt5.getLabel() == "Salvar")
{
for(int i=0;i<100;i++)
if(agenda[i][nome] == "")
{
agenda[i][nome] = tf.getText();
agenda[i][end] = tf1.getText();
agenda[i][cep] = tf2.getText();
agenda[i][tel] = tf3.getText();
break;
}
bt5.setLabel("Incluir");
tf_set_enable(false);
}
else
{
limpar();
bt5.setLabel("Salvar");
tf_set_enable(true);
}
}
public void excluir()
{
agenda[indice][nome] = "";
agenda[indice][end] = "";
agenda[indice][cep] = "";
agenda[indice][tel] = "";
}
public void editar()
{
if(bt7.getLabel() == "Salvar")
{
agenda[indice][nome] = tf.getText();
agenda[indice][end] = tf1.getText();
agenda[indice][cep] = tf2.getText();
agenda[indice][tel] = tf3.getText();
bt7.setLabel("Editar");
tf_set_enable(false);
}
else
{
bt7.setLabel("Salvar");
tf_set_enable(true);
}
}
public void voltar()
{
if(indice == 0)
{
indice = 0;
set_title("set");
JOptionPane.showMessageDialog(null, "Inicio da Agenda");
}
else
if(indice > 0)
{
indice--;
tf.setText(agenda[indice][nome]);
tf1.setText(agenda[indice][end]);
tf2.setText(agenda[indice][cep]);
tf3.setText(agenda[indice][tel]);
set_title("--");
}
}
public void avancar()
{
if(indice == 99)
{
indice = 99;
set_title("set");
JOptionPane.showMessageDialog(null, "Fim da Agenda");
}
else
if(indice < 99)
{
indice++;
tf.setText(agenda[indice][nome]);
tf1.setText(agenda[indice][end]);
tf2.setText(agenda[indice][cep]);
tf3.setText(agenda[indice][tel]);
set_title("++");
}
}
public void limpar()
{
tf.setText("");
tf1.setText("");
tf2.setText("");
tf3.setText("");
}
public void actionPerformed(java.awt.event.ActionEvent e)
{
if(e.getSource() == bt5)
{
incluir_salvar();
bt_verificar();
}
else
if(e.getSource() == bt6)
{
excluir();
limpar();
bt_verificar();
}
else
if(e.getSource() == bt7)
{
editar();
bt_verificar();
}
else
if(e.getSource() == bt8)
{
voltar();
bt_verificar();
}
else
if(e.getSource() == bt9)
{
avancar();
bt_verificar();
}
else
if(e.getSource() == bt10)
{
System.exit(0);
}
}
public static void main(String [] arg)
{
agenda01 janela = new agenda01();
janela.setVisible(true);
}
}
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