Understanding TreeMap in Java is essential for efficient data management. This guide covers best practices for working with TreeMap, including its usage scenarios, performance considerations, and sorting mechanics.
TreeMap, Java Collections, SortedMap, Best Practices, Performance, Data Management
// Importing necessary classes
import java.util.TreeMap;
public class TreeMapExample {
public static void main(String[] args) {
// Creating a TreeMap
TreeMap map = new TreeMap<>();
// Adding key-value pairs
map.put("Apple", 2);
map.put("Banana", 5);
map.put("Orange", 3);
// Displaying the TreeMap
System.out.println("TreeMap: " + map);
// Retrieving a value associated with a key
int count = map.get("Banana");
System.out.println("Banana count: " + count);
// Remove a key-value pair
map.remove("Apple");
System.out.println("After removing Apple: " + map);
// Iterate through the TreeMap
for (String key : map.keySet()) {
System.out.println(key + ": " + map.get(key));
}
}
}
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