Which of the following pairs fill in the blanks to output 6?
❌ A. ArrayList and put(1, 6) ❌ B. ArrayList and replace(1, 6) ✅ C. ArrayList and set(1, 6) ❌ D. HashSet and put(1, 6) ❌ E. HashSet and replace(1, 6) ❌ F. HashSet and set(1, 6) ❌ G. The code does not compile with any of these options.
Explanation: The put() method is used on a Map rather than a List or Set, making options A and D incorrect. The replace() method does not exist on either of these interfaces. Finally, the set method is valid on a List rather than a Set because a List has an index. Therefore, option C is correct.
Which of the following pairs fill in the blanks to output 6?
❌ A. ArrayList and put(1, 6) ❌ B. ArrayList and replace(1, 6) ✅ C. ArrayList and set(1, 6) ❌ D. HashSet and put(1, 6) ❌ E. HashSet and replace(1, 6) ❌ F. HashSet and set(1, 6) ❌ G. The code does not compile with any of these options.
Explanation: The put() method is used on a Map rather than a List or Set, making options A and D incorrect. The replace() method does not exist on either of these interfaces. Finally, the set method is valid on a List rather than a Set because a List has an index. Therefore, option C is correct.
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