Java3 lesson 2 homework.

src/lesson2/database/MainDB.java

@@ -0,0 +1,46 @@
+package lesson2.database;
+
+import java.sql.*;
+
+public class MainDB {
+    private static Connection connection;
+    private static Statement statement;
+
+    public static void main(String[] args) throws SQLException {
+        try {
+            connection();
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+//        ResultSet resultSet = statement.executeQuery("SELECT * FROM employees;");
+
+//        ResultSetMetaData resultSetMetaData = resultSet.getMetaData();
+//
+//        for (int i = 1; i <= resultSetMetaData.getColumnCount(); i++) {
+//            System.out.println(resultSetMetaData.getColumnName(i) + " " + resultSetMetaData.getColumnType(i));
+//
+//        }
+
+//        while (resultSet.next()){
+//            System.out.println(resultSet.getInt(1) + " " + resultSet.getString("name"));
+//        }
+//        statement.executeUpdate("UPDATE employees SET salary = 5 where id = 4");
+//        statement.executeUpdate("DELETE FROM employees where id = 4");
+//        statement.executeUpdate("DROP TABLE IF EXISTS employees");
+        statement.executeUpdate("CREATE TABLE employees (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, position TEXT, salary INTEGER);");
+    }
+
+    public static void connection() throws ClassNotFoundException, SQLException {
+            Class.forName("org.sqlite.JDBC");
+
+            connection = DriverManager.getConnection("jdbc:sqlite:EmployeesDB.db");
+            statement = connection.createStatement();
+    }
+
+    public static void disconect() throws SQLException {
+            connection.close();
+    }
+}