TP1

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.awt.FlowLayout;
import javax.swing.border.TitledBorder;
import javax.swing.UIManager;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextPane;
import javax.swing.JLabel;

public class CalculatriceSwing extends JFrame implements ActionListener {

    private JPanel panneau_general;
    private JTextField Add_champ1;
    private JTextField Add_champ2;
    private JLabel Resultat;
    private JButton Substract;
    private Object Add;
    private JButton Substract_1;
    private JButton Add_1;
    private JButton EurToBTC;
    private JButton BTCToEur;
    private JTextField Devise;
    private JLabel RsltConvers;

    /**
     * Launch the application.
     */

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    CalculatriceSwing frame = new CalculatriceSwing();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public CalculatriceSwing() {
        super("KYS");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 470, 296);
        panneau_general = new JPanel();
        panneau_general.setBackground(new Color(102, 102, 102));
        panneau_general.setForeground(new Color(255, 255, 0));
        panneau_general.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(panneau_general);
        panneau_general.setLayout(null);

        JPanel panneau1 = new JPanel();
        panneau1.setBackground(new Color(51, 51, 51));
        panneau1.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Calculer", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
        panneau1.setBounds(10, 11, 437, 97);
        panneau_general.add(panneau1);
        panneau1.setLayout(null);

        Add_1 = new JButton("Add");
        Add_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                OnAdd();
            }
        });

        Add_1.setBackground(Color.LIGHT_GRAY);
        Add_1.setBounds(218, 24, 89, 23);
        panneau1.add(Add_1);



        Substract_1 = new JButton("Substract");
        Substract_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                OnSubstract();
            }

        });

        Substract_1.setBackground(Color.LIGHT_GRAY);
        Substract_1.setBounds(218, 58, 89, 23);
        panneau1.add(Substract_1);

        Add_champ1 = new JTextField();
        Add_champ1.setBackground(new Color(204, 204, 204));
        Add_champ1.setBounds(10, 39, 86, 20);
        panneau1.add(Add_champ1);
        Add_champ1.setColumns(10);

        Add_champ2 = new JTextField();
        Add_champ2.setBackground(new Color(204, 204, 204));
        Add_champ2.setBounds(102, 39, 86, 20);
        panneau1.add(Add_champ2);
        Add_champ2.setColumns(10);

        Resultat = new JLabel("");
        Resultat.setForeground(Color.RED);
        Resultat.setBackground(Color.GRAY);
        Resultat.setBounds(331, 39, 63, 20);
        panneau1.add(Resultat);

        JPanel panneau2 = new JPanel();
        panneau2.setBackground(new Color(51, 51, 51));
        panneau2.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Convertisseur", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
        panneau2.setBounds(10, 119, 437, 127);
        panneau_general.add(panneau2);
        panneau2.setLayout(null);

        Devise = new JTextField();
        Devise.setText("Devise");
        Devise.setBounds(38, 51, 86, 20);
        panneau2.add(Devise);
        Devise.setColumns(10);

        BTCToEur = new JButton("BTC>Eur");
        BTCToEur.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                OnBTCToEur();
            }
        });
        BTCToEur.setBounds(169, 50, 89, 23);
        panneau2.add(BTCToEur);

        EurToBTC = new JButton("Eur>BTC");
        EurToBTC.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                OnEurToBTC();
            }
        });
        EurToBTC.setBounds(169, 16, 89, 23);
        panneau2.add(EurToBTC);

        RsltConvers = new JLabel("");
        RsltConvers.setForeground(Color.WHITE);
        RsltConvers.setBackground(Color.WHITE);
        RsltConvers.setBounds(301, 50, 86, 23);
        panneau2.add(RsltConvers);

        JLabel lblTauxDeChange = new JLabel("TAUX DE CHANGE");
        lblTauxDeChange.setForeground(Color.WHITE);
        lblTauxDeChange.setBounds(169, 84, 120, 14);
        panneau2.add(lblTauxDeChange);

        JLabel TxChange = new JLabel("1 eur = 0.000078 BTC");
        TxChange.setForeground(Color.WHITE);
        TxChange.setBounds(169, 102, 120, 14);
        panneau2.add(TxChange);
    }


    public void OnEurToBTC(){

        String s1= Devise.getText();
        double i = Double.parseDouble(s1)*0.000078;
        RsltConvers.setText(i+"");
    }

    public void OnBTCToEur(){
        String s1= Devise.getText();
        double i = Double.parseDouble(s1)/0.000078;
        RsltConvers.setText(i+"");
    }

    public void OnAdd() {

        String s1 = Add_champ1.getText();
        String s2 = Add_champ2.getText();

        int i =Integer.parseInt(s1)+Integer.parseInt(s2);
        if(i>=0)
            Resultat.setForeground(Color.GREEN);

        if(i<0)
            Resultat.setForeground(Color.RED);


        try {
        Resultat.setText(i+"");}
        catch(NumberFormatException e){Resultat.setText("?");}


    }

    public void OnSubstract(){
        String s1 = Add_champ1.getText();
        String s2 = Add_champ2.getText();

        int i =Integer.parseInt(s1)-Integer.parseInt(s2);

        if(i>=0)
            Resultat.setForeground(Color.GREEN);

        if(i<0)
            Resultat.setForeground(Color.RED);


        try {
        Resultat.setText(i+"");}
        catch(NumberFormatException e){Resultat.setText("?");}


        }
}