What exactly not to do while coding in Java

[lisa]

Hello guys,
All of us usually learn about the very best things you can do whenever you do programming in Java, but frequently, people understand through their own errors. Precisely I want to ask what are the major points that should be kept in mind to avoid errors?

 

[DavidYFoster]

Hi lisa I think java is a user friendly language but sometimes Permgen or any other error can occur. I can think there are three main reason for this:

1) More the no. of classes will be loaded more spaces will be occupied in permgen area.

2) Too many reference of static variable in application.

3)Too many use of string literals in application.