post order successor

PostOrder Node Iterator of Binary Tree

Introduction This is going to be a short post. The problem statement at hand is to write PostOrder Node Iterator of Binary Tree. For those who do not know the Iterator Design Pattern or Post Order Successor, check the next section. Iterator Design Pattern This pattern is used to iterate through a collection or group. The Java Iterator supports the following three methods : hasNext() : returns a boolean true if the collection has elements after the last returned element, false otherwise. next() : returns the next element in the collection. remove() : removes the element from the coll...
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