Which of the following statements are true?
1. A hash map can store null as a value
2. A hash map can use null as a key
3. A hash map can’t store null as a value
4. A hash map can’t use null as a key
a. 1 and 2
b. 1 and 4
c. 3 and 4
d. 2 and 3
a. 1 and 2
A hash map can store null as a value and use it as a key.
Computer Science & Information Technology
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