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## Core Java Collections Cookbooks and Examples

### Relevant Articles: 

- [Time Comparison of Arrays.sort(Object[]) and Arrays.sort(int[])](https://www.baeldung.com/arrays-sortobject-vs-sortint)
- [Java ArrayList vs Vector](https://www.baeldung.com/java-arraylist-vs-vector)
- [Differences Between HashMap and Hashtable](https://www.baeldung.com/hashmap-hashtable-differences)
- [Differences Between Collection.clear() and Collection.removeAll()](https://www.baeldung.com/java-collection-clear-vs-removeall)
- [Performance of contains() in a HashSet vs ArrayList](https://www.baeldung.com/java-hashset-arraylist-contains-performance)
- [Fail-Safe Iterator vs Fail-Fast Iterator](https://www.baeldung.com/java-fail-safe-vs-fail-fast-iterator)
- [Quick Guide to the Java Stack](https://www.baeldung.com/java-stack)
- [Convert an Array of Primitives to a List](https://www.baeldung.com/java-primitive-array-to-list)
- [A Guide to BitSet in Java](https://www.baeldung.com/java-bitset)
- [Get the First Key and Value From a HashMap](https://www.baeldung.com/java-hashmap-get-first-entry)
- [Performance of removeAll() in a HashSet](https://www.baeldung.com/java-hashset-removeall-performance)
