CODEWITHSUNDEEP
groovy
pagerbak
pagerbak

Reputation: 93

groovy multiple assignment with each closure fails

Why does this groovy code 

def versionString = '10.15.20'
int major
int minor
int patch
(major, minor, patch) = versionString.split(/\./).each { Integer.parseInt(it) }
println "$major.$minor.$patch"

throw this exception 

Caught: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object '10' with class 'java.lang.String' to class 'int'
org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object '10' with class 'java.lang.String' to class 'int'

instead of displaying 10.15.20?

I.e. why are the variables assigned with the output from split() rather than the output of the closure?

Upvotes: 0

Views: 550

Answers (1)

tim_yates
tim_yates

Reputation: 171084

You need collect

(major, minor, patch) = versionString.split(/\./).collect { Integer.parseInt(it) }

Upvotes: 2

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