some changes

DEV/DEV3.1/TP03/Exercise2/Champ.java

@@ -0,0 +1,18 @@
+public class Champ {
+    
+    private String code; 
+    private String[] modules; 
+
+    public Champ(String code, String[] modules) {
+        this.code = code; 
+        this.modules = modules;
+    }
+
+    public String getCode() {
+        return this.code;
+    }
+
+    public String[] getModules() {
+        return this.modules;
+    }
+}

DEV/DEV3.1/TP03/Exercise2/Database.java

@@ -0,0 +1,44 @@
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+public class Database {
+    
+    private Connection connection; 
+
+    public Database() {
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+
+            this.connection = DriverManager.getConnection(
+                "jdbc:mariadb://dwarves.iut-fbleau.fr/baudrier",
+                "baudrier",
+                "baudrier"
+            );
+        } catch(ClassNotFoundException exception) {
+            System.err.println("Class 'org.mariadb.jdbc.Driver' not found.");
+        } catch(SQLException exception) {
+            System.err.println("Error while trying to connect to the database");
+        }
+    }
+
+    public Champ[] getAllData() {
+        PreparedStatement query = this.connection.prepareStatement("SELECT id, code FROM Champ");
+        ResultSet result = query.executeQuery();
+
+        while(result.next()) {
+            query = this.connection.prepareStatement("SELECT code FROM Modules WHERE champId = " + result.getInt("id"));
+        }
+    } 
+
+    public void close() {
+        try {
+            this.connection.close();
+        } catch(SQLException exception) {
+            System.err.println("Error while trying to close the connection.");
+        }
+    }
+}

DEV/DEV3.1/TP03/Exercise2/Main.java

@@ -0,0 +1 @@
+

DEV/DEV3.1/TP03/Exercise2/schema.sql

@@ -0,0 +1,21 @@
+CREATE TABLE Champ (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    code VARCHAR(20)
+);
+
+CREATE TABLE Module (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    champId INT REFERENCES Champ(id),
+    code VARCHAR(20)
+);
+
+INSERT INTO Champ(code) VALUES ("APL");
+INSERT INTO Champ(code) VALUES ("WIM");
+
+INSERT INTO Module(champId, code) VALUES (1, "M1102");
+INSERT INTO Module(champId, code) VALUES (1, "M1103");
+INSERT INTO Module(champId, code) VALUES (1, "M3103");
+INSERT INTO Module(champId, code) VALUES (2, "M1105");
+INSERT INTO Module(champId, code) VALUES (2, "M3104");
+INSERT INTO Module(champId, code) VALUES (2, "M4103C");
+INSERT INTO Module(champId, code) VALUES (2, "M4104C");