How to get system time in Java without creating a new Date

Question

I need to get the system date, and Java provides the new Date().getTime().

But I need to avoid new object allocation (I\'m working on a embedded system)

Answer 1

You can use System.currentTimeMillis().

At least in OpenJDK, Date uses this under the covers.

The call in System is to a native JVM method, so we can't say for sure there's no allocation happening under the covers, though it seems unlikely here.