What are alternatives to LinkedHashMap and how do they compare?

Explore various alternatives to LinkedHashMap in Java, including HashMap, TreeMap, and ConcurrentHashMap. Understand how these data structures differ in terms of ordering, performance, and use cases.

LinkedHashMap, HashMap, TreeMap, ConcurrentHashMap, Java Collections, performance, ordering, data structures

// Using HashMap HashMap hashMap = new HashMap<>(); hashMap.put(1, "One"); hashMap.put(2, "Two"); System.out.println("HashMap: " + hashMap); // Using TreeMap TreeMap treeMap = new TreeMap<>(); treeMap.put(1, "One"); treeMap.put(2, "Two"); System.out.println("TreeMap: " + treeMap); // Using ConcurrentHashMap ConcurrentHashMap concurrentMap = new ConcurrentHashMap<>(); concurrentMap.put(1, "One"); concurrentMap.put(2, "Two"); System.out.println("ConcurrentHashMap: " + concurrentMap);

LinkedHashMap HashMap TreeMap ConcurrentHashMap Java Collections performance ordering data structures

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