which is best about performance static or object

Question

i coded like this

 import static adminDetails.Provider.*; import java.sql.*; public class ConnectionProvider { private static Connection con; static{ try{ Class.forName(DRIVER); con=DriverManager.getConnection(CONNECTION_URL,USERNAME,PASSWORD); }catch(Exception e){} } public static Connection getCon(){ return con; } }

and use this code in another java file with a static method call like this

public class AdministrationDetails { Connection con=ConnectionProvider.getCon(); //... }

In java API also they are doing static imports like this. My question is why do we need static method call instead normal object, what is the difference.

Might be a duplication of this: stackoverflow.com/questions/15183295/… — Vaiden
– Vaiden, Commented Aug 11, 2014 at 7:36
Why would you want to create objects of ConnectionProvider to get the connection object. Static methods avoid this and hence is more efficient — Manjunath
– Manjunath, Commented Aug 11, 2014 at 7:38

Smutje · Accepted Answer · 2014-08-11 07:39:27Z

Connection is static to prevent recurring creation of connection objects when there is no use of multiple connections due to their stateless-ness.

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