Home what are the effect of warning message in my program
 What is the effect of the warning message? Like my Program gives warning ex is declared but never used. I understand that I am not using ex in my program. But i want to know what exactly issue if I declared this type or variable and never used. Is this using memory or slow down my program or anything else.  catch( Exception ex) { // Not using Ex in only declared to track when I debugging the code }