Classes code reviews

src/main/java/classes.java

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+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class classes {
+
+    private String name;
+
+    public classes(String name){
+        this.name = name;
+    }
+
+    public void insert_classes(Connection conn) throws SQLException{
+        String sql = " insert into classes (name)"
+        + " values ('"+ name +"')";
+
+        PreparedStatement preparedStmt = conn.prepareStatement(sql);
+        preparedStmt.execute();
+        System.out.println("Données insérés dans la table...");         
+    }
+
+    public void delete_classes(Connection conn) throws SQLException{
+        String sql = "delete from classes where name = '"+ name +"'";
+
+        PreparedStatement preparedStmt = conn.prepareStatement(sql);
+        preparedStmt.execute();
+        System.out.println("Données enlevés dans la table...");     
+    }
+
+    public int count_member(Connection conn) throws SQLException{
+        String id = "SELECT id from classes where name = '"+ name +"'";
+        String sql = "SELECT count(*) from class_members where id = '" + id + "'";
+
+        PreparedStatement preparedStmt = conn.prepareStatement(sql);
+        ResultSet rs = preparedStmt.executeQuery();
+
+        while(rs.next()){
+            System.out.println(rs.getInt(1));
+            return rs.getInt(1);
+        }
+
+        return rs.getInt(1);
+    }
+
+}

src/main/java/code_reviews.java

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+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+public class code_reviews {
+
+    private String name;
+    private String description;
+    private Date date;
+    private int class_id;
+
+    public code_reviews(String name, String desc, Date date, int c_id){
+        this.name = name;
+        this.description = desc;
+        this.date = date;
+        this.class_id = c_id;
+    }
+
+    public void insert_code_reviews(Connection conn) throws SQLException{
+        String sql = " insert into code_reviews (name,description,datetime,class_id)"
+        + " values ('"+ name +"', '"+ description +"', '"+ date +"', '"+ class_id+"')";
+
+        PreparedStatement preparedStmt = conn.prepareStatement(sql);
+        preparedStmt.execute();
+        System.out.println("Données insérés dans la table...");         
+    }
+
+    public void delete_code_recviews(Connection conn) throws SQLException{
+        String sql = "delete from code_reviews where name = '"+ name +"' AND datetime = '"+ date +"'";
+
+        PreparedStatement preparedStmt = conn.prepareStatement(sql);
+        preparedStmt.execute();
+        System.out.println("Données enlevés dans la table...");     
+    }
+
+}

src/main/java/main.java

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+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+import static org.junit.Assert.*;
+
+public class main {
+
+    public static void main(String[] args) {
+        Connection conn = null;
+        try {
+            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/welcome_pool", "anthony", "1234");
+            assertTrue(conn != null);
+
+            classes c = new classes("Test00");
+            c.insert_classes(conn);
+
+            //c.delete_classes(conn);
+
+
+            /*String str="2015-03-31";  
+            Date date=Date.valueOf(str);//converting string into sql date  
+
+            code_reviews t = new code_reviews("Code_review 1", "On parle de Test4", date, 2);
+            //t.insert_code_reviews(conn);
+            t.delete_code_recviews(conn);
+            */
+            conn.close();
+        } catch (SQLException e) {
+            System.out.println(e);
+        }
+    }
+}