Method convertToUppercaseStrings
Method convertToUppercaseStrings
(lines 52–61) changes lowercase String
elements in its List
argument to uppercase String
s. Line 54 calls List method listIterator to get the List
’s bidirectional iterator (i.e., one that can traverse a List
backward or forward). ListIterator
is also a generic class. In this example, the ListIterator
references String
objects, because method listIterator
is called on a List
of String
s. Line 56 calls method hasNext
to determine whether the List
contains another element. Line 58 gets the next String
in the List
. Line 59 calls String method toUpperCase to get an uppercase version of the String
and calls ListIterator method set to replace the current String
to which iterator
refers ...
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