import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import java.awt.GridLayout;
import java.awt.event.*;

import javax.swing.JLabel;
import javax.swing.JButton;
//import javax.swing.JOptionpane;
import javax.swing.JPanel;
public class PasarVariable {
public static void main(String[] args) {
miVentana ventana=new miVentana();
ventana.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ventana.setVisible(true);
}
}
class miVentana extends JFrame{
public miVentana(){
this.setTitle("Ayuda1000");
this.setSize(ancho,largo);
miPanel panel=new miPanel();
add(panel);
}
private static final int ancho=200;
private static final int largo=100;
}
class miPanel extends JPanel{
ObtenerVariable o=new ObtenerVariable();
JTextField txtTexto=new JTextField();
JLabel lbTexto=new JLabel("Ingrese Texto");
JButton btnEnviar=new JButton("Enviar a otra Clase");
JLabel lbEnviar=new JLabel("Enviar Variable");
public miPanel()
{
this.setLayout(new GridLayout(2,2));
add(lbTexto);add(txtTexto);
add(lbEnviar);add(btnEnviar);
Oyente oyente=new Oyente();
btnEnviar.addActionListener(oyente);
}
class Oyente implements ActionListener{
public void actionPerformed(ActionEvent e)
{
int var=Integer.parseInt(txtTexto.getText());
o.setVariable(var);
o.mostrarVaribale();
}
}

}
class ObtenerVariable{
int var;
public void setVariable(int var)
{
this.var=var;
}
public void mostrarVaribale()
{
System.out.println("Su valor es:"+var);
//o
//JOptionPane.showMessageDialog(null,"Su varible es:"+var);
}

}