TreeMap values() Method in Java with Examples
Last Updated : 11 Jul, 2025
In Java, the values() method of the TreeMap class is present inside java.util package which is used to create a collection out of the values of the map. It basically returns a Collection view of the values in the TreeMap.
--> java.util package --> TreeMap class --> values() Method
Syntax:
Tree_Map.values()
Return Type: A collection view containing all the values of the map.
Now we will be proposing different sets to illustrate values() method as listed:
- Mapping string values to integer keys
- Mapping integer values to string keys
Example 1: Mapping String Values to Integer Keys
Java // Java Program to illustrate values() Method // of TreeMap class // Importing required classes import java.util.*; // Main class public class GFG { // Main driver method public static void main(String[] args) { // Creating an empty TreeMap by // declaring object of integer, string pairs TreeMap<Integer, String> tree_map = new TreeMap<Integer, String>(); // Mapping string values to int keys // using put() method tree_map.put(10, "Geeks"); tree_map.put(15, "4"); tree_map.put(20, "Geeks"); tree_map.put(25, "Welcomes"); tree_map.put(30, "You"); // Printing the elements of TreeMap System.out.println("Initial Mappings are: " + tree_map); // Getting the set view of values // using values() method System.out.println("The collection is: " + tree_map.values()); } } Output: Initial Mappings are: {10=Geeks, 15=4, 20=Geeks, 25=Welcomes, 30=You} The collection is: [Geeks, 4, Geeks, Welcomes, You] Example 2: Mapping Integer Values to String Keys.
Java // Java Program to Illustrate values() method // of TreeMap class // Importing required classes import java.util.*; // Main class public class GFG { // Main driver method public static void main(String[] args) { // Creating an empty TreeMap by // declaring object of string, integer pairs TreeMap<String, Integer> tree_map = new TreeMap<String, Integer>(); // Mapping int values to string keys // using put() method tree_map.put("Geeks", 10); tree_map.put("4", 15); tree_map.put("Geeks", 20); tree_map.put("Welcomes", 25); tree_map.put("You", 30); // Printing the elements of TreeMap System.out.println("Initial Mappings are: " + tree_map); // Getting the set view of values // using values() method System.out.println("The collection is: " + tree_map.values()); } } Output: Initial Mappings are: {4=15, Geeks=20, Welcomes=25, You=30} The collection is: [15, 20, 25, 30] Note: The same operation can be performed with any type of Mappings with variation and combination of different data types.
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