Class constructor with boolean return possible?

[KingdomX]

As the title states, is class constructor with a boolean return possible? I've created a Database class and i was wondering how could i return a successful connection to the database... here's the code:

index.jsp

                <%
                Db test = new Db();
                out.print(test);
                %>

package Database;

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

public class Db {
    private String driver = "com.mysql.jdbc.Driver";
    private String URL = "jdbc:mysql://localhost/seuBanco";
    private String USE = "root";
    private String SENHA = "";
    private Connection conn;   
  
    public boolean Db(){  
        try{ Class.forName(driver);  
            Connection con = DriverManager.getConnection(URL, USE, SENHA);  
            Statement stmt = con.createStatement();  
            ResultSet rs = stmt.executeQuery("QUERY");  
        }catch(Exception e){  
           return false;
        }  
        return true;
    }
}

Could any give me some help with this one? I'm a little lost at Java, just started developing with it and got a LOT to learn still!

Thanks in advance!

[JosAH]

As the title states, is class constructor with a boolean return possible?

Nope, constructors don't return anything and so they don't have a return type. Why not use another method for that?

kind regards,

Jos

[KingdomX]

Hmmmm, i see... so i can't really do this:

boolean test = new Db();
out.print(test);

I see... Thanks, i'll make another method then and i'll use your info for future reference!

Thanks a lot!

[pbrockway2]

is class constructor with a boolean return possible?

No.

Your constructor can, however, throw an exception. Or you can not have a public constructor at all and use a factory method instead.

The code in Oracle's JDBC Tutorial has the class provide a public method that *returns* a Connection (or throws an exception). That tutorial would be a good place to start.