Create a class MapTester (either in your current project or in a new project). In it, use a HashMap to implement a phone book similar to the one in the example above. (Remember that you must import java.util.HashMap.) In this class, implement two methods:
public void enterNumber(String name, String number)
and
public String lookupNumber(String name)
The methods should use the put and get methods of the HashMap class to implement their functionality.
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