TreeMap

import java.util.*;

public class TreeMapExample {
    public static void main(String[] args) {
        // Creating a TreeMap
        TreeMap<Integer, String> treeMap = new TreeMap<>();

        // Adding elements to the TreeMap
        treeMap.put(1, "Apple");
		 treeMap.put(4, "Mango");
        treeMap.put(5, "Grapes");
        treeMap.put(2, "Banana");
        treeMap.put(3, "Orange");
       

        // Printing the TreeMap
        System.out.println("TreeMap: " + treeMap);

        // Getting the size of the TreeMap
        System.out.println("Size of TreeMap: " + treeMap.size());

        // Checking if TreeMap is empty
        System.out.println("Is TreeMap empty? " + treeMap.isEmpty());

        // Getting value associated with a key
        System.out.println("Value associated with key 3: " + treeMap.get(3));

        // Checking if TreeMap contains a key
        System.out.println("Does TreeMap contain key 4? " + treeMap.containsKey(4));

        // Checking if TreeMap contains a value
        System.out.println("Does TreeMap contain value 'Grapes'? " + treeMap.containsValue("Grapes"));

        // Removing an element from TreeMap
        treeMap.remove(2);
        System.out.println("After removing key 2: " + treeMap);

        // Getting the first key and value
        System.out.println("First key in TreeMap: " + treeMap.firstKey());
        System.out.println("First value in TreeMap: " + treeMap.firstEntry().getValue());

        // Getting the last key and value
        System.out.println("Last key in TreeMap: " + treeMap.lastKey());
        System.out.println("Last value in TreeMap: " + treeMap.lastEntry().getValue());

        // Getting a submap from TreeMap
        SortedMap<Integer, String> subMap = treeMap.subMap(1, 4);
        System.out.println("Submap from key 1 to key 3: " + subMap);

        // Clearing the TreeMap
        treeMap.clear();
        System.out.println("TreeMap after clearing: " + treeMap);
    }
}