For example, instead of this:
public String getName(){
return name;
}
I want to get this:
public String getName(){
return this.name;
}
It appears I used such setting in Eclipse, but I can't find it for Idea...
Yes, you can use an inspection for that.
Now IntelliJ Idea will highlight not qualified access and you can refactor (ALT-ENTER under linux) to fix the issue (see capture below)
(screenshots from IntelliJ Idea 12 under linux)