EL FUTURO DEL CEREBRO (PROGRAMATE TODO): 10/25/13

import javax.swing.*;

public class Conversor extends javax.swing.JFrame {
private Object objJTextField;

public Conversor() {
initComponents()

;
}

/**
* 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">//GEN-BEGIN:initComponents
private void initComponents() {

etGradosC = new javax.swing.JLabel();
etGradosF = new javax.swing.JLabel();
ctGradosC = new javax.swing.JTextField();
ctGradosF = new javax.swing.JTextField();
btAceptar = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Conversion De Temperaturas");

etGradosC.setFont(new java.awt.Font("Tahoma", 0, 24)); // NOI18N
etGradosC.setText("Grados Centigrados");

etGradosF.setFont(new java.awt.Font("Tahoma", 0, 24)); // NOI18N
etGradosF.setText("Grados Fahrenheit");

ctGradosC.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
ctGradosC.setText("0.00");
ctGradosC.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyTyped(java.awt.event.KeyEvent evt) {
ctGradosCKeyTyped(evt);
}
});

ctGradosF.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
ctGradosF.setText("32.00");
ctGradosF.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyTyped(java.awt.event.KeyEvent evt) {
ctGradosFKeyTyped(evt);
}
});

btAceptar.setMnemonic('A');
btAceptar.setText("Aceptar");
btAceptar.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btAceptarActionPerformed(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()
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(btAceptar, javax.swing.GroupLayout.PREFERRED_SIZE, 126, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(etGradosC)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(ctGradosC, javax.swing.GroupLayout.PREFERRED_SIZE, 140, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(etGradosF)
.addGap(18, 18, 18)
.addComponent(ctGradosF, javax.swing.GroupLayout.PREFERRED_SIZE, 140, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(24, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(72, 72, 72)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(etGradosC)
.addComponent(ctGradosC, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(60, 60, 60)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(etGradosF, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(ctGradosF))
.addGap(28, 28, 28)
.addComponent(btAceptar, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(29, Short.MAX_VALUE))
);

pack();
}// </editor-fold>//GEN-END:initComponents

private void btAceptarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btAceptarActionPerformed

try
{
double grados;

if(objJTextField==ctGradosC)
{
grados=Double.parseDouble(ctGradosC.getText())*9.0/5.0+32.0;
String texto=String.format("%.2f",grados); //redondear a decimales
ctGradosF.setText(texto);
}

if(objJTextField==ctGradosF)
{
grados=(Double.parseDouble(ctGradosF.getText())-32.0)*5.0/9.0;
String texto=String.format("%.2f",grados);
ctGradosC.setText(texto);
}
}

catch(NumberFormatException e)
{
ctGradosC.setText(".00");

ctGradosF.setText("32.00");

}

}//GEN-LAST:event_btAceptarActionPerformed

private void ctGradosCKeyTyped(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_ctGradosCKeyTyped
// TODO add your handling code here:
objJTextField=evt.getSource();

}//GEN-LAST:event_ctGradosCKeyTyped

private void ctGradosFKeyTyped(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_ctGradosFKeyTyped
// TODO add your handling code here:
objJTextField=evt.getSource();

}//GEN-LAST:event_ctGradosFKeyTyped

/**
* @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(Conversor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Conversor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Conversor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Conversor.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 Conversor().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton btAceptar;
private javax.swing.JTextField ctGradosC;
private javax.swing.JTextField ctGradosF;
private javax.swing.JLabel etGradosC;
private javax.swing.JLabel etGradosF;
// End of variables declaration//GEN-END:variables
}

import javax.swing.*;
import java.awt.event.*;
import java.util.HashSet;

/*
*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

/**
*
* @author JOSUE
*/

public class Calculadora extends javax.swing.JFrame {

private Entrada ultimaEntrada;
private boolean puntoDecimal;
private char operador;
private byte numOperandos;
private double operando1,operando2;

private enum Entrada{NINGUNA,DIGITO,OPERADOR,CE};
/**
* Creates new form Calculadora
*/
public Calculadora()
{

initComponents();
ultimaEntrada= Entrada.NINGUNA;
puntoDecimal=false;
numOperandos=0;
operando1=0;
operando2=0;

}

/**
* 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">//GEN-BEGIN:initComponents
private void initComponents() {

jbtDigito18 = new javax.swing.JButton();
jtfPantalla = new javax.swing.JTextField();
jbtDigito8 = new javax.swing.JButton();
jbtDigito7 = new javax.swing.JButton();
jbtDigito9 = new javax.swing.JButton();
jbtDigito4 = new javax.swing.JButton();
jbtDigito5 = new javax.swing.JButton();
jbtDigito6 = new javax.swing.JButton();
jbtDigito2 = new javax.swing.JButton();
jbtDigito3 = new javax.swing.JButton();
jbtDigito1 = new javax.swing.JButton();
jbtDigito0 = new javax.swing.JButton();
jbtDigitoPunto = new javax.swing.JButton();
jbtDividir = new javax.swing.JButton();
jbtInicial = new javax.swing.JButton();
jbtMenos = new javax.swing.JButton();
jbtMas = new javax.swing.JButton();
jbtBorrarEntrada = new javax.swing.JButton();
jbtIgual = new javax.swing.JButton();
jbtPor = new javax.swing.JButton();
jbtTantoPorCiento = new javax.swing.JButton();

jbtDigito18.setText("9");

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Calculadora");
setBackground(new java.awt.Color(204, 255, 255));
setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));

jtfPantalla.setEditable(false);
jtfPantalla.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
jtfPantalla.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jtfPantalla.setText("0.");

jbtDigito8.setText("8");
jbtDigito8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito7.setText("7");
jbtDigito7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito9.setText("9");
jbtDigito9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito4.setText("4");
jbtDigito4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito5.setText("5");
jbtDigito5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito6.setText("6");
jbtDigito6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito2.setText("2");
jbtDigito2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito3.setText("3");
jbtDigito3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito1.setText("1");
jbtDigito1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigito0.setText("0");
jbtDigito0.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoActionPerformed(evt);
}
});

jbtDigitoPunto.setText(".");
jbtDigitoPunto.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtDigitoPuntoActionPerformed(evt);
}
});

jbtDividir.setText("/");
jbtDividir.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtOperacionActionPerformed(evt);
}
});

jbtInicial.setText("C");
jbtInicial.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtInicialActionPerformed(evt);
}
});

jbtMenos.setText("-");
jbtMenos.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtOperacionActionPerformed(evt);
}
});

jbtMas.setText("+");
jbtMas.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtOperacionActionPerformed(evt);
}
});

jbtBorrarEntrada.setText("CE");
jbtBorrarEntrada.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtBorrarEntrada(evt);
}
});

jbtIgual.setText("=");
jbtIgual.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtOperacionActionPerformed(evt);
}
});

jbtPor.setText("X");
jbtPor.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtOperacionActionPerformed(evt);
}
});

jbtTantoPorCiento.setText("%");
jbtTantoPorCiento.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtTantoPorCientoActionPerformed(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(21, 21, 21)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jbtDigito0, javax.swing.GroupLayout.PREFERRED_SIZE, 118, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtDigitoPunto, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(jbtDigito7, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtDigito8, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jbtDigito4, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtDigito5, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jbtDigito1, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jbtDigito2, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jbtDigito6, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito9, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito3, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGap(54, 54, 54)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(jbtDividir, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtMenos, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addGroup(layout.createSequentialGroup()
.addComponent(jbtPor, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jbtMas, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addComponent(jbtTantoPorCiento, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jbtInicial, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtBorrarEntrada, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)))))
.addComponent(jbtIgual, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(jtfPantalla, javax.swing.GroupLayout.PREFERRED_SIZE, 348, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(22, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(33, 33, 33)
.addComponent(jtfPantalla, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtDigito7, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito8, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito9, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtBorrarEntrada, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtInicial, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtDigito6, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito5, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito4, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtMenos, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDividir, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtDigito3, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito2, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigito1, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jbtDigito0, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtDigitoPunto, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtMas, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtPor, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jbtTantoPorCiento, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jbtIgual, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);

pack();
}// </editor-fold>//GEN-END:initComponents

private void jbtDigitoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtDigitoActionPerformed
// TODO add your handling code here:

JButton objJBT=(JButton)evt.getSource();
String textoBoton=objJBT.getText();

if(ultimaEntrada !=Entrada.DIGITO)
{
if(textoBoton.compareTo("0")==0)return;
jtfPantalla.setText("");
ultimaEntrada=Entrada.DIGITO;
}

jtfPantalla.setText(jtfPantalla.getText() + textoBoton);

}//GEN-LAST:event_jbtDigitoActionPerformed

private void jbtDigitoPuntoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtDigitoPuntoActionPerformed
// TODO add your handling code here:
if(ultimaEntrada !=Entrada.DIGITO)
{
jtfPantalla.setText("0.");
ultimaEntrada=Entrada.DIGITO;
}

else if(puntoDecimal==false)

jtfPantalla.setText(jtfPantalla.getText()+ ".");
puntoDecimal=true;

}//GEN-LAST:event_jbtDigitoPuntoActionPerformed

private void jbtOperacionActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtOperacionActionPerformed
// TODO add your handling code here:

JButton objJBT=(JButton)evt.getSource();
String textoBoton=objJBT.getText();

if((numOperandos == 0) && (textoBoton.compareTo("-")==0))
ultimaEntrada = Entrada.DIGITO;

if (ultimaEntrada == Entrada.DIGITO)
numOperandos++;

if(numOperandos==1)
operando1=Double.parseDouble(jtfPantalla.getText());
else if(numOperandos==2)
{
operando2=Double.parseDouble(jtfPantalla.getText());

switch (operador)
{
case '+':
operando1 +=operando2;
break;

case '-':
operando1 -=operando2;
break;

case 'X':

operando1 *= operando2;
break;

case '/':
operando1/=operando2;
break;

case '=':
operando1=operando2;
break;
}

jtfPantalla.setText(Double.toString(operando1));
numOperandos=1;

}

operador=textoBoton.charAt(0);
ultimaEntrada=Entrada.OPERADOR;

}//GEN-LAST:event_jbtOperacionActionPerformed

private void jbtTantoPorCientoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtTantoPorCientoActionPerformed
// TODO add your handling code here:

double resultado;

if(ultimaEntrada==Entrada.DIGITO)
{
resultado=operando1*Double.parseDouble(jtfPantalla.getText())/100;
jtfPantalla.setText(Double.toString(resultado));

jbtIgual.doClick();
jbtTantoPorCiento.requestFocus();
}

}//GEN-LAST:event_jbtTantoPorCientoActionPerformed

private void jbtInicialActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtInicialActionPerformed
// TODO add your handling code here:

jtfPantalla.setText("0.");
ultimaEntrada=Entrada.NINGUNA;
puntoDecimal=false;
operador=0;
numOperandos=0;
operando1=0;
operando2=0;
}//GEN-LAST:event_jbtInicialActionPerformed

private void jbtBorrarEntrada(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jbtBorrarEntrada
// TODO add your handling code here:
jtfPantalla.setText("0.");
ultimaEntrada=Entrada.CE;
puntoDecimal=false;

}//GEN-LAST:event_jbtBorrarEntrada

/**
* @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(Calculadora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Calculadora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Calculadora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Calculadora.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 Calculadora().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jbtBorrarEntrada;
private javax.swing.JButton jbtDigito0;
private javax.swing.JButton jbtDigito1;
private javax.swing.JButton jbtDigito18;
private javax.swing.JButton jbtDigito2;
private javax.swing.JButton jbtDigito3;
private javax.swing.JButton jbtDigito4;
private javax.swing.JButton jbtDigito5;
private javax.swing.JButton jbtDigito6;
private javax.swing.JButton jbtDigito7;
private javax.swing.JButton jbtDigito8;
private javax.swing.JButton jbtDigito9;
private javax.swing.JButton jbtDigitoPunto;
private javax.swing.JButton jbtDividir;
private javax.swing.JButton jbtIgual;
private javax.swing.JButton jbtInicial;
private javax.swing.JButton jbtMas;
private javax.swing.JButton jbtMenos;
private javax.swing.JButton jbtPor;
private javax.swing.JButton jbtTantoPorCiento;
private javax.swing.JTextField jtfPantalla;
// End of variables declaration//GEN-END:variables
}

viernes, 25 de octubre de 2013

Convertidor de grados Java

Calculadora en JAVA