Arrays and Array Lists - Java Concepts - page 419

14 int c = firstBankOfJava.
count(threshold);
15 System.out.println( "Count: " + c);
16 System.out.println( "Expected: 2" );
17
18 int accountNumber = 1015 ;
19 BankAccount a =
firstBankOfJava.find(accountNumber);
20 if (a == null )
21 System.out.println( "No matching
account" );
22 else
23 System.out.println( "Balance of
matching account: "
24 + a.getBalance());
25 System.out.println( "Expected: 10000" );
26
27 BankAccount max =
firstBankOfJava.getMaximum();
28 System.out.println( "Account with
largest balance: "
29 + max.getAccountNumber());
30 System.out.println( "Expected: 1001" );
31 }
32 }

305
306

Output

Count: 2
Expected: 2
Balance of matching account: 10000.0
Expected: 10000
Account with largest balance: 1001
Expected: 1001

S ELF C HECK

9. What does the find method do if there are two bank accounts with a
matching account number?

10. Would it be possible to use a Ȓfor eachȓ loop in the getMaximum
method?