References to java programs coded using primitives only

Question

I\'ve heard of Java programs with strict latency requirements where \"new\" instructions are never -or very rarely- used (because no new=>no objects->no GC=>improved latency

Answer 1

I have worked on a number of such systems. You will need to worry about creating objects if you need sub millisecond latencies. It is possible to write an application which doesn't GC all day, just to avoid any GC delays.

However, 99%+ of applications don't need this extreme.