feat(examen 9-5-25): terminado

src/tutorialJava/examenes/examen20250509/controlador/ControladorConcierto.java

@@ -186,6 +186,92 @@ public class ControladorConcierto {
 		}
 		return lista;
 	}
+	
+	
+	
+	public static Object[][] getTotalesFestivalesPorCiudad() {
+		List<Object[]> list = new ArrayList<Object[]>();
+		try {
+			Connection conn = ConnectionManager.getConnection();
+			Statement s = conn.createStatement();
+			ResultSet rs = s.executeQuery("select sala.ciudad as ciudad, "
+					+ "count(concierto.id) as festivales "
+					+ "from concierto inner join sala "
+					+ "on (concierto.sala_id = sala.id) "
+					+ "where  concierto.es_festival = 1 "
+					+ "group by sala.ciudad;");
+			while (rs.next()) {
+				Object fila[] = new Object[2];
+				fila[0] = rs.getString("ciudad");
+				fila[1] = rs.getString("festivales");
+				list.add(fila);
+			}
+		}
+		catch (Exception ex) {
+			ex.printStackTrace();
+		}
+		
+		// Convierto la lista en una matriz
+		Object m[][] = new Object[list.size()][2];
+		for (int i = 0; i < list.size(); i++) {
+			m[i][0] = list.get(i)[0];
+			m[i][1] = list.get(i)[1];	
+		}
+		
+		return m;
+	}
+	
+	
+	
+	/**
+	 * 
+	 * @return
+	 */
+	public static float getPrecioMedioConciertos() {
+		try {
+			Connection conn = ConnectionManager.getConnection();
+			Statement s = conn.createStatement();
+			ResultSet rs = 
+					s.executeQuery("select avg(precio) from concierto");
+			
+			if (rs.next()) {
+				return rs.getFloat(1);
+			}
+		}
+		catch (Exception ex) {
+			ex.printStackTrace();
+		}
+		return -1;
+	}
+	
+	
+	
+	/**
+	 * 
+	 * @return
+	 */
+	public static String getGrupoConMasConciertos() {
+		try {
+			Connection conn = ConnectionManager.getConnection();
+			Statement s = conn.createStatement();
+			ResultSet rs = 
+					s.executeQuery("select count(concierto.id) as total, "
+							+ "grupo.nombre "
+							+ "from concierto inner join grupo "
+							+ "on concierto.grupo_id = grupo.id "
+							+ "group by grupo.nombre "
+							+ "order by total desc limit 1");
+			
+			if (rs.next()) {
+				return rs.getString(2);
+			}
+		}
+		catch (Exception ex) {
+			ex.printStackTrace();
+		}
+		return "Error al obtener el grup con más conciertos";
+	}
+
 }
 
 
@@ -198,3 +284,7 @@ public class ControladorConcierto {
 
 
 
+
+
+
+

src/tutorialJava/examenes/examen20250509/vista/PanelEstadisticas.java

@@ -0,0 +1,130 @@
+package tutorialJava.examenes.examen20250509.vista;
+
+import javax.swing.JPanel;
+import java.awt.GridBagLayout;
+import javax.swing.JScrollPane;
+import java.awt.GridBagConstraints;
+import javax.swing.JLabel;
+import java.awt.Insets;
+import java.awt.Font;
+import javax.swing.JButton;
+import javax.swing.JTable;
+
+import tutorialJava.examenes.examen20250509.controlador.ControladorConcierto;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+
+public class PanelEstadisticas extends JPanel {
+
+	private static final long serialVersionUID = 1L;
+	private JTable jTableDatos;
+	private JLabel lblPrecioMedio;
+	JLabel lblGrupoConMasConciertos;
+
+	/**
+	 * Create the panel.
+	 */
+	public PanelEstadisticas() {
+		GridBagLayout gridBagLayout = new GridBagLayout();
+		gridBagLayout.columnWidths = new int[]{0, 0, 0};
+		gridBagLayout.rowHeights = new int[]{0, 0, 0, 0, 0};
+		gridBagLayout.columnWeights = new double[]{1.0, 0.0, Double.MIN_VALUE};
+		gridBagLayout.rowWeights = new double[]{0.0, 1.0, 0.0, 0.0, Double.MIN_VALUE};
+		setLayout(gridBagLayout);
+		
+		JLabel lblNewLabel = new JLabel("Estadísticas");
+		lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 15));
+		GridBagConstraints gbc_lblNewLabel = new GridBagConstraints();
+		gbc_lblNewLabel.gridwidth = 2;
+		gbc_lblNewLabel.insets = new Insets(0, 0, 5, 5);
+		gbc_lblNewLabel.gridx = 0;
+		gbc_lblNewLabel.gridy = 0;
+		add(lblNewLabel, gbc_lblNewLabel);
+		
+		JScrollPane scrollPane = new JScrollPane();
+		GridBagConstraints gbc_scrollPane = new GridBagConstraints();
+		gbc_scrollPane.gridwidth = 2;
+		gbc_scrollPane.insets = new Insets(0, 0, 5, 5);
+		gbc_scrollPane.fill = GridBagConstraints.BOTH;
+		gbc_scrollPane.gridx = 0;
+		gbc_scrollPane.gridy = 1;
+		add(scrollPane, gbc_scrollPane);
+		
+		jTableDatos = new JTable(getMatrizDeDatos(), getTitulosMatriz());
+		scrollPane.setViewportView(jTableDatos);
+		
+		JButton btnNewButton_1 = new JButton("Calcular precio medio");
+		btnNewButton_1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				lblPrecioMedio.setText("" + 
+						ControladorConcierto.getPrecioMedioConciertos());
+			}
+		});
+		GridBagConstraints gbc_btnNewButton_1 = new GridBagConstraints();
+		gbc_btnNewButton_1.insets = new Insets(0, 0, 5, 5);
+		gbc_btnNewButton_1.gridx = 0;
+		gbc_btnNewButton_1.gridy = 2;
+		add(btnNewButton_1, gbc_btnNewButton_1);
+		
+		lblPrecioMedio = new JLabel("New label");
+		GridBagConstraints gbc_lblPrecioMedio = new GridBagConstraints();
+		gbc_lblPrecioMedio.insets = new Insets(0, 0, 5, 0);
+		gbc_lblPrecioMedio.gridx = 1;
+		gbc_lblPrecioMedio.gridy = 2;
+		add(lblPrecioMedio, gbc_lblPrecioMedio);
+		
+		JButton btnNewButton = new JButton("Grupo con más conciertos");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				lblGrupoConMasConciertos.setText(
+						ControladorConcierto.getGrupoConMasConciertos());
+			}
+		});
+		GridBagConstraints gbc_btnNewButton = new GridBagConstraints();
+		gbc_btnNewButton.insets = new Insets(0, 0, 0, 5);
+		gbc_btnNewButton.gridx = 0;
+		gbc_btnNewButton.gridy = 3;
+		add(btnNewButton, gbc_btnNewButton);
+		
+		lblGrupoConMasConciertos = new JLabel("New label");
+		GridBagConstraints gbc_lblGrupoConMasConciertos = new GridBagConstraints();
+		gbc_lblGrupoConMasConciertos.gridx = 1;
+		gbc_lblGrupoConMasConciertos.gridy = 3;
+		add(lblGrupoConMasConciertos, gbc_lblGrupoConMasConciertos);
+
+	}
+
+	/**
+	 * 
+	 * @return
+	 */
+	private Object[][] getMatrizDeDatos() {
+//		String matriz[][] = new String[2][2];
+//		matriz[0][0] = "Rafa";
+//		matriz[0][1] = "Ismael";
+//		matriz[1][0] = "Rubén";
+//		matriz[1][1] = "Mª Jesús";
+		return ControladorConcierto.getTotalesFestivalesPorCiudad();
+	}
+	
+	/**
+	 * 
+	 * @return
+	 */
+	private String[] getTitulosMatriz() {
+		return new String[] {"Ciudad", "Número de festivales"};
+	}
+	
+}
+
+
+
+
+
+
+
+
+
+
+
+

src/tutorialJava/examenes/examen20250509/vista/PanelFiltradoConciertos.java

@@ -31,6 +31,7 @@ public class PanelFiltradoConciertos extends JPanel {
 	JComboBox<Sala> jcbSalas;
 	DefaultListModel<String> dlmConciertos = 
 			new DefaultListModel<String>();
+	JList jlistConciertos;
 
 	/**
 	 * Create the panel.
@@ -106,10 +107,15 @@ public class PanelFiltradoConciertos extends JPanel {
 		gbc_scrollPane.gridy = 3;
 		add(scrollPane, gbc_scrollPane);
 		
-		JList jlistConciertos = new JList(dlmConciertos);
+		jlistConciertos = new JList(dlmConciertos);
 		scrollPane.setViewportView(jlistConciertos);
 		
 		JButton btnEliminar = new JButton("Eliminar");
+		btnEliminar.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				eliminarSeleccionados();
+			}
+		});
 		GridBagConstraints gbc_btnEliminar = new GridBagConstraints();
 		gbc_btnEliminar.anchor = GridBagConstraints.SOUTH;
 		gbc_btnEliminar.insets = new Insets(0, 0, 5, 0);
@@ -166,6 +172,17 @@ public class PanelFiltradoConciertos extends JPanel {
 		dlmConciertos.removeAllElements();
 		dlmConciertos.addAll(conciertosFiltrados);
 	}
+	
+	/**
+	 * 
+	 */
+	private void eliminarSeleccionados() {
+		int selectedIndices[] = this.jlistConciertos.getSelectedIndices();
+		for (int  i = selectedIndices.length - 1; i >= 0; i--) {
+			System.out.println("Selected index: " + selectedIndices[i]);
+			dlmConciertos.removeElementAt(selectedIndices[i]);
+		}
+	}
 }
 
 

src/tutorialJava/examenes/examen20250509/vista/VentanaPrincipal.java

@@ -58,8 +58,8 @@ public class VentanaPrincipal extends JFrame {
 		PanelFiltradoConciertos panel2 = new PanelFiltradoConciertos();
 		tabbedPane.addTab("Filtrado de conciertos", null, panel2, null);
 		
-		JPanel panel3 = new JPanel();
+		PanelEstadisticas panel3 = new PanelEstadisticas();
-		tabbedPane.addTab("New tab", null, panel3, null);
+		tabbedPane.addTab("Estadísticas", null, panel3, null);
 	}
 
 }