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ConcurrentHashMap values() method in Java with Examples

Last Updated : 30 Oct, 2018
The values() method of ConcurrentHashMap 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 ConcurrentHashMap. Syntax: 
ConcurrentHashMap.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 ConcurrentHashMap.values() Method: Program 1: Mapping String Values to Integer Keys.
Output: 
Initial Mappings are: {20=Geeks, 25=Welcomes, 10=Geeks, 30=You, 15=4}
The Collection is: [Geeks, Welcomes, Geeks, You, 4]
Program 2: Mapping Integer Values to String Keys.
Output: 
Initial Mappings are: {4=15, Geeks=20, You=30, Welcomes=25}
The Collection is: [15, 20, 30, 25]
Note: The same operation can be performed with any type of Mappings with variation and combination of different data types.
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