import java.sql.Driver;

public class Conn {

	public static void main(String args[]) throws Exception {
		String urls[] = {
			"jdbc:xx:postgresql",
			"jdbc:xx:postgresql:xx",
			"jdbc:xx:xx:postgresql",
			"jdbc:hsqldb:.....",
			"jdbc:oraclethin:..."

		};

		Driver driver = new org.postgresql.Driver();
		for (String url : urls) {
			System.out.println(url + " = " + driver.acceptsURL(url));
		}
	}
}