Conexão com Banco de Dados

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;


public class ConnectionFactory {
	public static Connection getConnection() throws SQLException {
		try {
		Class.forName("oracle.jdbc.driver.OracleDriver");
		System.out.println("Conectando banco de dados");
		return DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:8081/spacemusic",
		"spacemusic", "spacemusic");
		} catch (ClassNotFoundException e) {
		throw new SQLException(e.getMessage());
		}
		}
}

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;


public class JDBCInsere {

	public static void main(String[] args) {
		try {
		// conectando
		Connection con = ConnectionFactory.getConnection();
		// cria um preparedStatement
		PreparedStatement stmt = con.prepareStatement("insert into contatos(nome,email,login) values (?,?,?)");
		// preenche os valores
		stmt.setString(1, "Rafael");
		stmt.setString(2, "[email removido]");
		stmt.setString(3, "rafa");
		// executa
		stmt.execute();
		stmt.close();
		System.out.println("Gravado!");
		con.close();
		} catch (SQLException e) {
		e.printStackTrace();
		}
	}	
}