CODEWITHSUNDEEP
groovy
svp
svp

Reputation: 495

list of maps ,get values of a certain key and convert into a set in groovy

I have list of maps and need to get values of a certain key and put them into a set .

def listofMaps= [
    [1:"A", 2:"B", 3:"C", 4:"D"],
    [1:"E", 2:"F", 3:"G", 4:"H"],
    [1:"I", 2:"J", 3:"K", 4:"L"]]

i need to get values of key:'2' into a set??

how to do this in groovy in an easy way??

Upvotes: 0

Views: 108

Answers (1)

Opal
Opal

Reputation: 84756

Here You go:

def maps= [[1:"A", 2:"B", 3:"C", 4:"D"],[1:"E", 2:"F", 3:"G", 4:"H"],[1:"I", 2:"J", 3:"K", 4:"L"]]

assert maps.collect {it[2]} as Set == ['B','F','J'] as Set

Upvotes: 1

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