TP Exceptions

DEV2.1/TP10/01_Plantages/ArithmeticExceptionApplication.java

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+public class ArithmeticExceptionApplication {
+	public static void main(String[] args) {
+		System.out.println(15/0);
+	}
+}

DEV2.1/TP10/01_Plantages/ArrayIndexOutOfBoundsExceptionApplication.java

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+public class ArrayIndexOutOfBoundsExceptionApplication {
+	public static void main(String[] args) {
+		int[] tab = {4,5,8,2,9};
+		System.out.println(tab[15]);
+	}
+}

DEV2.1/TP10/01_Plantages/NullPointerExceptionApplication.java

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+public class NullPointerExceptionApplication {
+
+	private int a;
+
+	public static void main(String[] args) {
+		NullPointerExceptionApplication test = null;
+		test.a = 5;
+	}
+}

DEV2.1/TP10/01_Plantages/NumberFormatExceptionApplication.java

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+public class NumberFormatExceptionApplication {
+	public static void main(String[] args) {
+		String texte = "Bonjour";
+		int nombre = Integer.parseInt(texte);
+	}
+}

DEV2.1/TP10/01_Plantages/RunTimeExceptionApplication.java

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+public class RunTimeExceptionApplication {
+	public static void main(String[] args) {
+		throw new RuntimeException("Rip");
+	}
+}

DEV2.1/TP10/02_Capture/ArithmeticExceptionApplication.java

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+public class ArithmeticExceptionApplication {
+
+	public static int division(int a, int b) {
+		// En mettant l'exception ici, on option une ligne de plus à l'exécution
+		return a/b;
+	}
+
+	public static void main(String[] args) {
+		try {
+			ArithmeticExceptionApplication.division(7, 0);
+		} catch (ArithmeticException e) {
+			System.out.println("Erreur : Division par 0");
+		}
+	}
+	
+}

DEV2.1/TP10/03_Incomplet/Incomplet.java

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+import java.io.IOException;
+
+public class Incomplet {
+	public static void main(String[] args) {
+		byte[] txt = {0x48, 0x65, 0x6C, 0x6C, 0x6F, 0x0D, 0x0A};
+		try {
+			System.out.write(txt);
+		} catch (IOException e) {
+		}
+	}
+}

DEV2.1/TP10/04_Apparences/Fond.java

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+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+
+public class Fond {
+	public static void main(String[] args) {
+		try {
+			try {
+				UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
+			} catch (ClassNotFoundException e) {
+			}
+		} catch (InstantiationException e2) {	
+		} catch (IllegalAccessException e3) {
+		} catch (UnsupportedLookAndFeelException e4) {
+		} // On constate que les boutons changent d'apparence 
+		catch (ClassCastException e5) {
+			System.out.println("Nom de manager incorrect");
+		} // Les boutons restent comme avant
+
+		JFrame fenetre = new JFrame();
+		fenetre.setSize(300,200);
+		fenetre.setLocation(100,100);
+		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		fenetre.setLayout(new GridLayout(1, 1));
+
+		JPanel panneau = new JPanel();
+
+		JButton bouton1 = new JButton("Cyan");
+		JButton bouton2 = new JButton("Magenta");
+		JButton bouton3 = new JButton("Jaune");
+
+		bouton1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.CYAN);
+			}
+		});
+
+		bouton2.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.MAGENTA);
+			}
+		});
+
+		bouton3.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.YELLOW);
+			}
+		});
+
+		panneau.add(bouton1);
+		panneau.add(bouton2);
+		panneau.add(bouton3);
+
+		fenetre.add(panneau);
+		fenetre.setVisible(true);
+	}
+}

DEV2.1/TP10/05_Degres/Conversion.java

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+public class Conversion {
+	public static double celsiusAFahrenheit(double n) {
+		return n*9/5+32;
+	}
+
+	public static double FahrenheitACelsius(double n) {
+		return (n-32)*5/9;
+	}
+}

DEV2.1/TP10/05_Degres/Degres.java

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+import java.awt.*;
+import javax.swing.*;
+import javax.swing.event.*;
+import java.awt.event.*;
+
+public class Degres extends JComponent {
+
+	@Override
+	public void paintComponent(Graphics pinceau) {
+		Graphics secondPinceau = pinceau.create();
+
+		if (this.isOpaque()) {
+			secondPinceau.setColor(this.getBackground());
+			secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
+		}
+
+		secondPinceau.setColor(Color.ORANGE);
+		secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
+
+		JTextField celsius = new JTextField();
+		JTextField fahrenheit = new JTextField();
+		celsius.setBounds(0, 65, 160, 20);
+		fahrenheit.setBounds(0, 90, 160, 20);
+
+		JLabel texteCelsius = new JLabel("°C");
+		JLabel texteFahrenheit = new JLabel("°F");
+		texteCelsius.setBounds(165, 65, 20, 20);
+		texteFahrenheit.setBounds(165, 90, 20, 20);
+
+		celsius.getDocument().addDocumentListener(new GestionJTextField(celsius, fahrenheit, true));
+		fahrenheit.getDocument().addDocumentListener(new GestionJTextField(fahrenheit, celsius, false));
+		
+		this.add(celsius);
+		this.add(fahrenheit);
+		this.add(texteCelsius);
+		this.add(texteFahrenheit);
+	}
+}

DEV2.1/TP10/05_Degres/Fenetre.java

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+import java.awt.*;
+import javax.swing.*;
+
+public class Fenetre extends JFrame {
+	public Fenetre() {
+		this.setSize(200, 200);
+		this.setLocation(100, 100);
+		this.setLayout(new GridLayout(1, 1));
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		Degres composant = new Degres();
+		this.add(composant);
+	}
+}

DEV2.1/TP10/05_Degres/GestionJTextField.java

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+import java.awt.event.*;
+import java.awt.*;
+import javax.swing.*;
+import javax.swing.event.*;
+
+public class GestionJTextField implements DocumentListener {
+
+
+	private JTextField aConvertir;
+	private JTextField convertirVers;
+	private boolean cToF;
+
+	public GestionJTextField(JTextField aConvertir, JTextField convertirVers, boolean cToF) {
+		this.aConvertir = aConvertir;
+		this.convertirVers = convertirVers;
+		this.cToF = cToF;
+	}
+
+
+	public void changedUpdate(DocumentEvent e) {
+	}
+
+
+	public void insertUpdate(DocumentEvent e) {
+		try {
+			if (this.cToF) {
+				this.convertirVers.setText(Conversion.celsiusAFahrenheit(Double.parseDouble(this.aConvertir.getText())) + "");
+			}
+			else {
+				this.convertirVers.setText(Conversion.FahrenheitACelsius(Double.parseDouble(this.aConvertir.getText())) + "");
+			}
+		} catch (NumberFormatException e2) {
+			try {
+				this.convertirVers.setText("???");
+			} catch (IllegalStateException ee) {
+			}
+		} catch (IllegalStateException e3) {
+		} finally {
+			this.convertirVers.repaint();
+		}
+	}
+
+
+	public void removeUpdate(DocumentEvent e) {
+	}
+}

DEV2.1/TP10/05_Degres/Main.java

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+public class Main {
+	public static void main(String[] args) {
+		Fenetre fenetre = new Fenetre();
+		fenetre.setVisible(true);
+	}
+}