Java 8 lambda Expression for reading contents of the list and storing the counts of repeating values in list to a map

Asked Apr 12 '16 at 18:26

Active Apr 15 '16 at 20:35

Viewed 77 times

I have a List<String> which is like,

List<String> dummyList=Arrays.asList("a","b","c","a","b","d","e","f");

I need to traverse through the list and need the count of only "a","b","c" from list and store the alphabet as key and count of presence of same alphabet as value.

The final map which i have to get is like following keys and with the counts,

a:2
b:2
c:1

edited Apr 15 '16 at 20:35

asked Apr 12 '16 at 18:26

Aravind.V

Why do you need this specifically as a lambda expression? – Daniel Martin Apr 12 '16 at 18:29
It was a requirement.I have written code without lambda expression, but i was instructed to use lambda expression – Aravind.V Apr 12 '16 at 18:34
Thank you guys for answering my question... – Aravind.V Apr 12 '16 at 18:43
I need only the count of "a","b","c" count in a map with keep as alphabet and value as its count. Need a solution using lambda expression. – Aravind.V Apr 15 '16 at 20:42

Java 8 lambda Expression for reading contents of the list and storing the counts of repeating values in list to a map

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