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Groovy supports the usual while {...} loops like Java.

for loop

The for loop in Groovy is much simpler and works with any kind of array, collection, Map etc.
Note: the standard for loop is not implemented by beta-10.
// for (int i = 0; i < 5; ++i) // not implemented by beta-10.

closures

In addition, you can use closures in place of most for loops, using each() and eachWithIndex():

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