Question

Why is the answer A?

Answer 1

Answer:

By entering the map.put(",") inside println, we are shifting the current memory address to D, and so on. And the put function does change the value, and that can be checked by using once again the same statement. And that means the println first prints the current value and then changes it. Also, only the value is printed, and not the key in this case, as this syntax reads like what is the current value stored at the mentioned index with key=" D" and so on. If we print each of these statements the second time, then changed value will be printed.

Explanation:

Please check the answer section.