Groovy: Count number of values that matches to given predicate

public Number count(Closure closure)

Counts the number of occurrences which satisfy the given closure from inside this Iterable.

HelloWorld.groovy

numbers = [1, 3, 3, 3, 2, 1, 4, 5, 4, 3, 2, 1, 6, 7, 8]

matchedNumbers = numbers.count {it % 2 == 0}
println "Total even Numbers : $matchedNumbers"

matchedNumbers = numbers.count {it % 2 != 0}
println "Total odd Numbers : $matchedNumbers"

Output

Total even Numbers : 6

Total odd Numbers : 9

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