The following code shows how to connect to PostgreSQL database.
import java.sql.Connection; import java.sql.DriverManager; // ww w .j a v a2 s . c o m public class Main { public static void main(String[] argv) throws Exception { Class.forName("org.postgresql.Driver"); Connection connection = DriverManager.getConnection( "jdbc:postgresql://127.0.0.1:5432/testdb", "userName", "password"); if (connection != null) { System.out.println("Connected"); } else { System.out.println("Failed to make connection!"); } } }