The AbstractMap.values() method of AbstractMap class in Java is used to create a collection out of the values of the map. It basically returns a Collection view of the values in the AbstractMap.
Syntax:
AbstractMap.values()
Parameters: The method does not accept any parameters.
Return Value: The method is used to return a collection view containing all the values of the map.
Below programs are used to illustrate the working of AbstractMap.values() Method:
Program 1: Mapping String Values to Integer Keys.
// Java code to illustrate the values() method  import java.util.*;  public class Abstract_Map_Demo {    public static void main(String[] args)    {          // Creating an empty AbstractMap        AbstractMap<Integer, String>            abs_map = new TreeMap<Integer, String>();          // Mapping string values to int keys        abs_map.put(10, "Geeks");        abs_map.put(15, "4");        abs_map.put(20, "Geeks");        abs_map.put(25, "Welcomes");        abs_map.put(30, "You");          // Displaying the AbstractMap        System.out.println("Initial Mappings are: "                           + abs_map);          // Using values() to get the set view of values        System.out.println("The collection is: "                           + abs_map.values());    }} |
Output:
Initial Mappings are: {10=Geeks, 15=4, 20=Geeks, 25=Welcomes, 30=You}
The collection is: [Geeks, 4, Geeks, Welcomes, You]
Program 2: Mapping Integer Values to String Keys.
// Java code to illustrate the values() method  import java.util.*;  public class Abstract_Map_Demo {    public static void main(String[] args)    {          // Creating an empty AbstractMap        AbstractMap<String, Integer>            abs_map = new TreeMap<String, Integer>();          // Mapping int values to string keys        abs_map.put("Geeks", 10);        abs_map.put("4", 15);        abs_map.put("Geeks", 20);        abs_map.put("Welcomes", 25);        abs_map.put("You", 30);          // Displaying the AbstractMap        System.out.println("Initial Mappings are: "                           + abs_map);          // Using values() to get the set view of values        System.out.println("The collection is: "                           + abs_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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