IntelliJ was almost perfect for Java (last used it 3 years ago), other than the ridiculous memory usage and the constant freezing which I'm pretty sure the JVM's GC was responsible for.
I've been using Qt Creator for C++ code for the past 3 years, and it's so much faster and non-laggy it's lovely - even when having some serious things missing (multiple monitor support).
IntelliJ Idea does not use more than 1/30 of my laptop memory with a huge project open. Constant freezing? This must have been a bug, because I'm using it for 2 years now, and no freezing at all, and autocomplete / navigation / find-usages are crazy fast. It gets a little sluggish only when I switch branches and it has to reindex hundred megabytes of jars. Well, but how often you do it...
BTW: Comparing it to Qt creator is very unfair, because Qt creator does not have half of the features included in IntelliJ. E.g. refactoring / inspections / full type-aware error highlighting (not just syntax checking).
IntelliJ was almost perfect for Java (last used it 3 years ago), other than the ridiculous memory usage and the constant freezing which I'm pretty sure the JVM's GC was responsible for.
I've been using Qt Creator for C++ code for the past 3 years, and it's so much faster and non-laggy it's lovely - even when having some serious things missing (multiple monitor support).