Find Answers For ... - Recent questions tagged duplicate

Is there any method to determine if a hashmap has duplicate values or not ?

Wed, 14 Aug 2013 14:25:26 +0000

So I should find whether the Map has duplicate values. I know we can iterate over the Map and use the return boolean of map.containsValue(value). I want to know whether any method exists to tell if a hashmap has duplicate values in it or we should write code to ourselves?

How to remove duplicate values from a hashmap in java?

Wed, 14 Aug 2013 14:13:22 +0000

I have a map with duplicate values:

("A", "1");
("B", "2");
("C", "2");
("D", "3");
("E", "3");

I would like to the map to have

("A", "1");
("B", "2");
("D", "3");

Do you know how to get rid of the duplicate values?