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Which of these method is used add an element and corresponding key to a map?
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- redo()
- add()
- set()
- put()
- None of these
Correct Option: D
Maps revolve around two basic operations – get() and put(). to put a value into a map, use put(), specifying the key and the value. To obtain a value, call get() , passing the key as an argument. The value is returned.
