for each loop in groovy

How to implement foreach in Groovy? I have an example of code in Java, but I don't know how to implement this code in Groovy...

Java:

for (Object objKey : tmpHM.keySet()) { HashMap objHM = (HashMap) list.get(objKey); } 

I read , and tried to translate my Java code to Groovy, but it's not working.

for (objKey in tmpHM.keySet()) { HashMap objHM = (HashMap) list.get(objKey); } 

4 Answers

as simple as:

tmpHM.each{ key, value -> doSomethingWithKeyAndValue key, value } 

This one worked for me:

def list = [1,2,3,4] for(item in list){ println item } 

Source: Wikia.

You can use the below groovy code for maps with for-each loop.

def map=[key1:'value1', key2:'value2'] for (item in map) { log.info item.value // this will print value1 value2 log.info item // this will print key1=value1 key2=value2 } 

Your code works fine.

def list = [["c":"d"], ["e":"f"], ["g":"h"]] Map tmpHM = [1:"second (e:f)", 0:"first (c:d)", 2:"third (g:h)"] for (objKey in tmpHM.keySet()) { HashMap objHM = (HashMap) list.get(objKey); print("objHM: ${objHM} , ") } 

prints objHM: [e:f] , objHM: [c:d] , objHM: [g:h] ,

See

Then click "edit in console", "execute script"