Making a Java PriorityQueue into a stable priority queue

Question

I\'m trying to implement a stable (first in first out) priority queue in Java. Supposing that the key is a name and the value is an age, I know I can make an unstable prior

Answer 1

Keap-based PriorityQueue is naturally stable. It's written in Kotlin, so it can replace java.util.PriorityQueue in Java code.