Groovy: Diamond Operator (<>)

Diamond operator is used to infer the generic type from the declaration.

Example

List<Integer> list = new ArrayList<> ()

HelloWorld.groovy

List<Integer> intList = new ArrayList<> ()
List<String> strList = new ArrayList<> ()

intList.add(2)
intList.add(3)
intList.add(5)

strList.add('India')
strList.add('Sri Lanka')

println intList
println strList

Output

[2, 3, 5]

[India, Sri Lanka]

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