![]() Some operations like findAny, findFirst, anyMatch, etc., can be faster with Streams because they allow short-circuiting. This is often negligible but might become significant when you perform simple operations over very large data sets. Streams introduce some overhead compared to a plain loop. But are they fast? Well, it depends on your specific use case. Streams are designed for expressiveness and can handle complex data transformation tasks. ![]() The For-Each loop is often easier to read and understand. For removing elements during traversal, using an Iterator is the most efficient and safest. Let’s see one more point here, if you are performing only read elements, all three approaches have similar performance. In the read operation of ArrayList, the performance difference is negligible because the ArrayList provides constant-time positional access.īut if we consider the modification like removing elements during traversal, then the Iterator approach may be more suitable as it avoids the ConcurrentModificationException and does not require manual index management.įor read-only operations, using the For-Each loop is often the most readable and straightforward, but it doesn’t offer any significant performance advantage over the traditional For loop. public class Student Which Approach is Best to traverse an ArrayList in Java? Here is the student class having some properties. To demonstrate an example, we’ll consider an example where we have a list of 10,000 Student objects, and the student object has 5 properties such as id, name, GPA, age, etc.
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