Using the Merge Method of the Map Interface, Which Statement

question 74

Multiple Choice

Using the merge method of the Map interface, which statement correctly updates the salesTotalByDept map of type Map<String,Integer> to update the sales total for a dept by an integer sales value?

• A)salesTotalByDept.merge(dept, sales,(d,s) -> s + 1);
• B)sales.merge(salesTotalByDept, dept, (d,s) -> s + sales);
• C)dept.merge(salesTotalByDept, sales, (d,s) -> s + sales);
• D)salesTotalByDept.merge(dept, sales, (d,s) -> s + sales);

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Definitions:

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