9.6. The foreach Statement
The foreach statement repeats a group of embedded statements for each element in an array or an object collection. The foreach statement is used to iterate through a collection to get the desired information, but, to avoid unpredictable side effects, you should not use it to change the contents of the collection. The statement takes the following form:
foreach (type identifier in expression) statement
where
type is the type of identifier.
identifier is the iteration variable that represents the collection element.
expression is the object collection or array expression. The type of the collection element must be convertible to the identifier type.
statement is the embedded statement(s) to be executed.
The embedded statements ...
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