Groovy: Range operator

Range operator '..' defines a list of sequential values.

groovy:000> x = 1..10
===> 1..10
groovy:000> x
===> 1..10
groovy:000> x[0]
===> 1
groovy:000> x[5]
===> 6
groovy:000> x.size()
===> 10
groovy:000> x.from
===> 1
groovy:000> x.to
===> 10
groovy:000> x.last()
===> 10

HelloWorld.groovy

def integers = 1..20

println "Element at index 5 : " + integers[5]
println "Size of integers list : " + integers.size()
println "Is integers instance of list : " + (integers instanceof List)
println "Reverse of elements : " + integers.reverse()
println "Is list contains element 15 ? " + integers.contains(15)

Output

def integers = 1..20

println "Element at index 5 : " + integers[5]
println "Size of integers list : " + integers.size()
println "Is integers instance of list : " + (integers instanceof List)
println "Reverse of elements : " + integers.reverse()
println "Is list contains element 15 ? " + integers.contains(15)

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