Given: 12. public class AccountManager { 13. private Map accountTotals = new HashMap(); 14. private int retirementFund; 15. 16. public int getBalance(String accountName) { 17. Integer total = (Integer) accountTotals.get(accountName); 18. if (total == null) 19. total = Integer.valueOf(0); 20. return total.intValue(); 21. } 23. public void setBalance(String accountName, int amount) { 24. accountTotals.put(accountName, Integer.valueOf(amount)); 25. } 26. } This class is to be updated to make use of appropriate generic types, with no changes in behavior (for better or worse). Which of these steps could be performed? (Choose three.)

technology web technology

  1. Replace line 13 with private Map accountTotals = new HashMap();

  2. Replace line 13 with private Map accountTotals = new HashMap();

  3. Replace line 13 with private Map> accountTotals = new HashMap>();

  4. Replace lines 17–20 with int total = accountTotals.get(accountName); if (total == null) total = 0; return total;

  5. Replace lines 17–20 with Integer total = accountTotals.get(accountName); if (total == null) total = 0; return total;

  6. Replace line 24 with accountTotals.put(accountName, amount);

Show answer
Correct Option: B,E,F

Find more quizzes: