Can you give me some practical examples of using LinkedHashMap in Java?
Sure! LinkedHashMap maintains the insertion order of elements. One common use is caching, where you want to keep track of the order of access.
How does it differ from HashMap?
Unlike HashMap, LinkedHashMap maintains a linked list of the entries, which allows it to preserve the order of insertion.
Can you show me a code snippet?
Absolutely! Here's a simple example:
LinkedHashMap<String, Integer> map = new LinkedHashMap<>();
map.put("One", 1);
map.put("Two", 2);
map.put("Three", 3);
System.out.println(map);
This will print the elements in the order they were added.
What are some use cases for LinkedHashMap?
Use cases include implementing LRU (Least Recently Used) caches, maintaining order in data processing, and more.
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