edejer

private static final String URL = "jdbc:oracle:thin:@localhost:1521:orcl";
    private static final String Username = "DBProject";
    private static final String Password = "database";
    Connection con;


    public void connect(){
        try {
            con = DriverManager.getConnection(URL, Username, Password);
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }

    public void disconnect(){
        try {
            con.close();
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }