lleuro.java

Converter from Euro to LBP

//Michel Tawil LLEURO.java
import java.awt.*;
import java.awt.event.*;

public class LLEURO extends Frame implements ActionListener
{
	private Button convertir,convertir1;
	private TextField LL,EURO;
	private Label lLL,lEURO,lfenetre;
	public LLEURO(String title)
{
	super(title);

	convertir=new Button("convertir en EURO");
	convertir1 = new Button("convertir en LL");

	LL=new TextField("",25);
	EURO=new TextField("",25);
	lLL=new Label("Livre Libanaise");
	lEURO=new Label("EURO");
	lfenetre=new Label("LLEURO");

	Panel pLL=new Panel();
	pLL.setLayout(new FlowLayout());
	pLL.add(lLL);
	pLL.add(LL);

	Panel pEURO=new Panel();
	pEURO.setLayout(new FlowLayout());
	pEURO.add(lEURO);
	pEURO.add(EURO);

	Panel p0 =new Panel();
	p0.add(lfenetre,BorderLayout.CENTER);

	Panel p1=new Panel();
	p1.add(pLL);
	p1.add(pEURO);

	
	Panel p3 = new Panel();
	p3.setLayout(new FlowLayout());
	p3.add(convertir);
	p3.add(convertir1);

	this.add(p0, BorderLayout.NORTH);
	this.add(p1, BorderLayout.CENTER);
	this.add(p3,BorderLayout.SOUTH);

	this.addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
				{
					System.exit(0);
				}
		}
	);

	convertir.addActionListener(this);
	convertir1.addActionListener(this);
}
	public void actionPerformed(ActionEvent e)
	{
		if (e.getSource() == convertir)
		{
			String getval = LL.getText();
			try
			{
				Float val = Float.parseFloat(getval);
				double coef = 0.0005231; //1507,5LL=1,268EURO
				double res = val * coef;
				EURO.setText(String.valueOf(res));
			}
			catch (NumberFormatException excep)
			{
				System.err.println("Entrer un nombre");
			}
		}
		if (e.getSource() == convertir1)
		{
			String getval = EURO.getText();
			try
			{
				Float val = Float.parseFloat(getval);
				double coef = 0.0005231; //1507,5LL=0.7886435EURO
				double res = val / coef;
				LL.setText(String.valueOf(res));
			}
			catch (NumberFormatException excep)
			{
				System.err.println("Entrer un nombre");
			}
		}
		else return;

	}
public static void main(String argv[])
	{
		LLEURO a=new LLEURO("LLEURO");
		a.pack();
		a.setVisible(true);
	}

}