From charlesreid1

Trees are directed acyclic graphs.

Any tree structure can be implemented using a linked memory structure - the nodes of the tree simply become objects that live in memory, and the tree structure becomes a collection of links, similar to a linked list.

Java implementation - linked binary tree

A concrete implementation (in Java) of a binary tree using a link structure for memory is at Binary Trees/LinkedBinTree - link: https://git.charlesreid1.com/cs/java/src/master/trees/LinkedBinTree.java

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