I was reading servlet advantages as below(http://www.javatpoint.com/servlet-tutorial
1. better performance: because it creates a thread for each request not process.
2. Portability: because it uses java language.
3. Robust: Servlets are managed by JVM so no need to worry about momory leak, garbage collection etc.
4. Secure: because it uses java language..
I have not understood point number1,3. Can you please explain.
Any links resources ideas highly appreciated. Thanks in advance