Programación en java: Convertir de Decimal a Binario en java

Esta ves empezaremos a programar con interfaces

Este primer programa enseñare a realizar un convertidor de Decimal a Binario ;

Empecemos;

creamos un nuevo proyecto con el nombre Binario.

una vez ya creado el proyecto creamos un jFrame Form .

Componentes:

utilizamos un panel.

2 Text Field y los re nombramos el primero con el nombre jTxt_numero el segundo con el nombre

jTxt_binario.

2 Label.

3 button el primero con el nombre jB_Convertir el segundo jB_salir y el tercero jB_limpiar.

Imagen gráfica de los componentes necesarios:

Lo voy separar para que lo comprendas con mayor facilidad :

Creación de variables:

int dividendo =0;//variable

int divisor=2;//variable

int residuo =0;//variable

int cosciente=0;//variable

private String binario;//variable

Creo el método convercion:

public void convercion(){ //metodo de convercio de decimal a binario

binario="";//la variable binario se vacia

for(cosciente =9;cosciente>0;cosciente++){

cosciente =dividendo /2;

residuo =dividendo %2;

binario = residuo + binario;

dividendo=cosciente;

if (cosciente==0){

break;

}

seguimos con la creacion de los Setter y Getter:

public void setDivisor(int divisor) {

this.divisor = divisor;

}

public String getBinario() {//get Binario

return binario;

}

public void setDividendo(int dividendo) {//set dividiendo

this.dividendo = dividendo;

}

creo el metodo de convertir de una cadena a un entero :

public int StringToint (String cad){//metodo que convierte de string a entero

try{

return Integer.parseInt (cad);

} catch(NumberFormatException a){

JOptionPane.showMessageDialog(null,"Por favor ingrese un numero");}

return 0;

}

pasamos a las acciones de los botones:

boton jB_Convertir :

private void jB_ConvertirMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

setDividendo(StringToint(jTxt_numero.getText()));//objetomodelo muestra el valor del numero1

convercion();//inicializamos compara para que realize la accion de el metodo en modelo

jTxt_binario.setText("" + getBinario());// se trae a getBianrio por que es el reultado que se rteornara

}

boton jB_salir:

private void jB_salirMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

System.exit(0);

}

boton jB_limpiar:

private void jB_limpiarMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

jTxt_numero.setText("");//vaciar lacaja de texto numero

jTxt_binario.setText("");//vaciar la caja de texto binario

}

Esto es todo de parte de codificación.

codigo de la aplicacion como deberia de quedarte

import javax.swing.JOptionPane;// importamos JOptionPane;

import javax.swing.JTextField;//importamos JTextField

/*

* To change this license header, choose License Headers in Project Properties.

* To change this template file, choose Tools | Templates

* and open the template in the editor.

*/

/**

*

* @author CRISTIAN

*/

public class Binario extends javax.swing.JFrame {

int dividendo =0;//variable

int divisor=2;//variable

int residuo =0;//variable

int cosciente=0;//variable

private String binario;//variable

/**

* Creates new form Binario

*/

public Binario() {

initComponents();



}

public void convercion(){ //metodo de convercio de decimal a binario

binario="";//la variable binario se vacia

for(cosciente =9;cosciente>0;cosciente++){

cosciente =dividendo /2;

residuo =dividendo %2;

binario = residuo + binario;

dividendo=cosciente;

if (cosciente==0){

break;

}



}

}

/**

* 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() {

jPanel1 = new javax.swing.JPanel();

jL_Decimal = new javax.swing.JLabel();

jB_Convertir = new javax.swing.JButton();

jTxt_numero = new javax.swing.JTextField();

jL_Binario = new javax.swing.JLabel();

jTxt_binario = new javax.swing.JTextField();

jLabel3 = new javax.swing.JLabel();

jB_salir = new javax.swing.JButton();

jB_limpiar = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jPanel1.setBackground(new java.awt.Color(51, 204, 255));

jPanel1.setName("Decimal a Binario"); // NOI18N

jL_Decimal.setText("INGRESE UN NUEMERO DECIMAL");

jB_Convertir.setText("Convertir");

jB_Convertir.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(java.awt.event.MouseEvent evt) {

jB_ConvertirMouseClicked(evt);

}

});

jL_Binario.setText("EL RESULTADO ES:");

jTxt_binario.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jTxt_binarioActionPerformed(evt);

}

});

jLabel3.setText("De Decimal a Binario ");

jB_salir.setText("Salir");

jB_salir.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(java.awt.event.MouseEvent evt) {

jB_salirMouseClicked(evt);

}

});

jB_limpiar.setText("Limpiar ");

jB_limpiar.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(java.awt.event.MouseEvent evt) {

jB_limpiarMouseClicked(evt);

}

});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);

jPanel1.setLayout(jPanel1Layout);

jPanel1Layout.setHorizontalGroup(

jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(jPanel1Layout.createSequentialGroup()

.addGap(38, 38, 38)

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)

.addGroup(jPanel1Layout.createSequentialGroup()

.addComponent(jL_Decimal)

.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(jTxt_numero, javax.swing.GroupLayout.PREFERRED_SIZE, 160, javax.swing.GroupLayout.PREFERRED_SIZE))

.addGroup(jPanel1Layout.createSequentialGroup()

.addComponent(jL_Binario)

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

.addComponent(jTxt_binario, javax.swing.GroupLayout.PREFERRED_SIZE, 160, javax.swing.GroupLayout.PREFERRED_SIZE)))

.addGap(0, 36, Short.MAX_VALUE))

.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()

.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 194, javax.swing.GroupLayout.PREFERRED_SIZE)

.addGap(109, 109, 109))

.addGroup(jPanel1Layout.createSequentialGroup()

.addGap(27, 27, 27)

.addComponent(jB_Convertir)

.addGap(42, 42, 42)

.addComponent(jB_limpiar)

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

.addComponent(jB_salir)

.addGap(72, 72, 72))

);

jPanel1Layout.setVerticalGroup(

jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(jPanel1Layout.createSequentialGroup()

.addGap(9, 9, 9)

.addComponent(jLabel3)

.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jL_Decimal, javax.swing.GroupLayout.PREFERRED_SIZE, 38, javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(jTxt_numero, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE))

.addGap(50, 50, 50)

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jL_Binario, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.addComponent(jTxt_binario, javax.swing.GroupLayout.PREFERRED_SIZE, 38, javax.swing.GroupLayout.PREFERRED_SIZE))

.addGap(55, 55, 55)

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jB_Convertir)

.addComponent(jB_salir)

.addComponent(jB_limpiar))

.addGap(61, 61, 61))

);

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

getContentPane().setLayout(layout);

layout.setHorizontalGroup(

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

.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

);

layout.setVerticalGroup(

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

.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

);

pack();

}// </editor-fold>

private void jTxt_binarioActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:



}

private void jB_ConvertirMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

setDividendo(StringToint(jTxt_numero.getText()));//objetomodelo muestra el valor del numero1

convercion();//inicializamos compara para que realize la accion de el metodo en modelo

jTxt_binario.setText("" + getBinario());// se trae a getBianrio por que es el reultado que se rteornara

}

private void jB_salirMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

System.exit(0);

}

private void jB_limpiarMouseClicked(java.awt.event.MouseEvent evt) {

// TODO add your handling code here:

jTxt_numero.setText("");//vaciar lacaja de texto numero

jTxt_binario.setText("");//vaciar la caja de texto binario

}

/**

* @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(Binario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (InstantiationException ex) {

java.util.logging.Logger.getLogger(Binario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (IllegalAccessException ex) {

java.util.logging.Logger.getLogger(Binario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (javax.swing.UnsupportedLookAndFeelException ex) {

java.util.logging.Logger.getLogger(Binario.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 Binario().setVisible(true);



}

});

}

// Variables declaration - do not modify

private javax.swing.JButton jB_Convertir;

private javax.swing.JButton jB_limpiar;

private javax.swing.JButton jB_salir;

private javax.swing.JLabel jL_Binario;

private javax.swing.JLabel jL_Decimal;

private javax.swing.JLabel jLabel3;

private javax.swing.JPanel jPanel1;

private javax.swing.JTextField jTxt_binario;

private javax.swing.JTextField jTxt_numero;

// End of variables declaration

public void setDivisor(int divisor) {

this.divisor = divisor;

}

public String getBinario() {//get Binario

return binario;

}

public void setDividendo(int dividendo) {//set dividiendo

this.dividendo = dividendo;

}

public int StringToint (String cad){//metodo que convierte de string a entero

try{

return Integer.parseInt (cad);

} catch(NumberFormatException a){

JOptionPane.showMessageDialog(null,"Por favor ingrese un numero");}

return 0;

}

}