Groovy For Loop Iteration

//For loop
//Iterate over a range
def x = 0
for (i in 0 .. 30) {
    x += i
}

//Iterate over a list
x = 0
for( i in [5,3,2,1] ) {
    x += i
}

//Iterate over an array
array = (0..20).toArray()
x = 0
for (i in array) {
    x += i
}

//Iterate over a map
def map = ['name':'Roberto', 'framework':'Grails', 'language':'Groovy']
x = ""
for ( e in map ) {
    x += e.value
    x += " "
}