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

public class Convert extends JPanel implements ActionListener{

      public Convert(){
	  
	  //JPanel panneau=new JPanel();
	  setLayout(new GridLayout(3,2));
	  setSize(100,100);
	  JTextArea champ1=new JTextArea(10,1);
	  add(champ1);
	  JLabel euro=new JLabel("Euros");
	  euro.setHorizontalAlignment(SwingConstants.CENTER);
	  add(euro);
	  //ActionListener listener=new ButtonListener(this);
	  JButton euro_en_livre=new JButton("Euro->Livre");
	  add(euro_en_livre);
	  euro_en_livre.addActionListener(this);
	  JButton livre_en_euro=new JButton("Livre->Euro");
	  add(livre_en_euro);
	  JTextArea champ2=new JTextArea(10,1);
	  add(champ2);
  	  livre_en_euro.addActionListener(this);
	  JLabel pounds=new JLabel("Pounds");
	  pounds.setHorizontalAlignment(SwingConstants.CENTER);
	  add(pounds);
	  	  

      }

      public void actionPerformed(ActionEvent e){
	if(e.getActionCommand().equals("Euro->Livre")){
		double valeur = Double.parseDouble(champ1.getText());
		valeur/= 1.2413;
		champ2.setText(valeur+"");
	}else{
		double valeur = Double.parseDouble(champ2.getText());
		valeur *= 0.78;
		champ1.setText(valeur+"");
        
        }
      }

      public static void main(String args[]){
	  JFrame fenetre=new JFrame("Convertisseur");
	   //panneau.setBackground(Color.BLUE);
	  fenetre.getContentPane().add(new Convert());
	  fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	  fenetre.setVisible(true);
      }

}