How to avoid 100% CPU utilization without removing while(true)

Question

I am working on a system where I need a while(true) where the loop constantly listens to a queue and increments counts in memory.

The data is constantly coming in the queue, so I cannot avoid a while(true) condition. But naturally it increases my CPU utilization to 100%.

So, how can I keep a thread alive which listens to the tail of queue and performs some action, but at the same time reduce the CPU utilization to 100%?

Answer 1

Blocking queues were invented exactly for this purpose.

Also see this: What are the advantages of Blocking Queue in Java?

Answer 2

usually a queue has a way to retrieve an item from it and your thread will be descheduled (thus using 0% cpu) until something arrives in the queue...