Difference between Iterator vs ListIterator
Here we will learn about differences between iterator and list iterator.
Iterator and ListIterator java differ based on following parameters:
1. Traversal direction
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Iterator allows to traverse the List, Set and Map in only forward direction. Iterator is unidirectional in nature.
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ListIterator allows to traverse the List (remember only List) in both forward and backward direction. ListIterator is bidirectional.
2. Method
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Iterator has next() method, using which forward traversal is possible.
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ListIterator has next() method for forward traversal and previous() method for backward traversal.
3. Collection implementations that can be traversed
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Iterator can traverse List, Set and Map.
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ListIterator can only be used for List traversal.
4. Modifying the elements while traversing
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Iterator can only remove the element during iteration. It has only remove() method.
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ListIterator can add, remove and set elements during iteration.
5. Current position
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Iterator cannot determine the current position of iteration during iterating over List.
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ListIterator can determine the current position of iteration during iterating over List.
6. Retrieve index
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Index of the element cannot be retrieved using Iterator.
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Index of the element can be retrieved using ListIterator using previousIndex() and nextIndex() method.
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About the Author
Rohanjit Kumar
Technology geek, loves to write and share knowledge with the world. Having 9+ years of IT experience. B.Tech in Computer Science & Engineering
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Published Date :
Jun 28,2020
