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Collections checkedSet() method in Java with Examples

Last Updated : 6 Jun, 2021

The checkedSet() method of java.util.Collections class is used to return a dynamically typesafe view of the specified set.
The returned set will be serializable if the specified set is serializable.
Since null is considered to be a value of any reference type, the returned set permits insertion of null elements whenever the backing set does.
Syntax: 
 

public static Set checkedSet(Set s, Class type)


Parameters: This method takes the following argument as a parameter 
 

  • s: the set for which a dynamically typesafe view is to be returned
  • type: the type of element that s is permitted to hold


Return Value: This method returns a dynamically typesafe view of the specified set.
Below are the examples to illustrate the checkedSet() method
Example 1: 
 


Output: 
Set: [Gopal, Ram, Verma]
Typesafe view of Set: [Gopal, Ram, Verma]

 

Example 2: 
 


Output: 
Set: [20, 30, 40]
Typesafe view of Set: [20, 30, 40]

 
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