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As detailed in the Java Language Specification \[[JLS 2005|AA. Bibliography#JLS 05]\], Section 14.14.2, "The Enhanced For Statement" 

an enhanced for statement of the form

Code Block
for (ObjType obj : someIterableItem) { 
  // ...
}

is equivalent to a standard for loop of the form

Code Block
for (Iterator myIterator = someIterableItem.iterator(); iterator.hasNext();) {
  ObjType obj = myIterator.next();
  // ...
}

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