plz give example on replace() by accepting characters dynamically in Java. Actually i tried following code: System.out.println("Enter characters to be replaced:"); char s4=(char)System.in.read(); char s5=(char)System.in.read(); System.out.println(s4); System.out.println(s5); String r=s1.replace(s4,s5); System.out.println(r);...

thanks praveena for providing information

hi everybody. please give information about Advances in networking security

Re: Firewall thank you Mahesh. Mahesh actually i visited the sites (which you have given ) before 1 week only. I want more about it. please send more information about...

Plz give me information about firewall(Working & types of firewall).

I want working of firewalls. Ankur actually iam participating in competition. In this we have to explain the topic in depth. plz give suggestions such as what to keep topics...

Hai Ankur. This is Dwarakanath divya from Andhra. I want information about Firewall. plz send information about it as soon as possible. it's very urgent.