public DatabaseServiceImpl(){

        try {
            Class.forName("oracle.jdbc.driver.OracleDriver");
            connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "student", "STUDENT");

            System.out.println("================================");
            System.out.println("  CONNECTED TO ORACLE DATABASE  ");
            System.out.println("================================");
        }
        catch (ClassNotFoundException e){
            System.err.println("FATAL ERROR: " + e.getMessage());
        }
        catch (SQLException e){
            System.err.println("DATABASE ERROR: " + e.getMessage());
        }
    }


========================================================



<dependency>
			<groupId>com.oracle</groupId>
			<artifactId>ojdbc6</artifactId>
			<version>11.2.0</version>
		</dependency>