How to Use DatabaseMetaData to Learn Database Information?

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In the following example, getMetaData method of the Connection class is used to return a DatabaseMetadata object, and then various methods of the DatabaseMetaData object are used to display information about the driver, driver version, database name, and database version:

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;

public class JDBCDatabaseMetaData {

    private static final String DBURL = 
          "jdbc:mysql://localhost:3306/mydb?user=usr&password=sql" +
          "&useUnicode=true&characterEncoding=UTF-8";
    private static final String DBDRIVER = "org.gjt.mm.mysql.Driver";
  
    static {
        try {
            Class.forName(DBDRIVER).newInstance();
        } catch (Exception e){
            e.printStackTrace();
        }
    }

    private static Connection getConnection() 
    {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(DBURL);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        return connection;
    }

    public static void main(String[] args) {
      Connection con = getConnection();
      try {
        DatabaseMetaData dbmd = con.getMetaData();
        System.out.println("dbmd:driver version = "
                  + dbmd.getDriverVersion());
        System.out.println("dbmd:driver name = " 
                  + dbmd.getDriverName());
        System.out.println("db name = " 
                  + dbmd.getDatabaseProductName());
        System.out.println("db ver = " 
                  + dbmd.getDatabaseProductVersion());
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }

}