Java Reference
In-Depth Information
83
// if proper acount type, display record
84
if
(shouldDisplay(accountType, balance))
85
System.out.printf(
"%-10d%-12s%-12s%10.2f%n"
, accountNumber,
86
firstName, lastName, balance);
87
else
88
input.nextLine();
// discard the rest of the current record
89
}
90
}
91
catch
(NoSuchElementException |
92
IllegalStateException | IOException e)
93
{
94
System.err.println(
"Error processing file. Terminating."
);
95
System.exit(
1
);
96
}
97
}
// end method readRecords
98
99
// use record type to determine if record should be displayed
100
private static boolean
shouldDisplay(
101
MenuOption accountType,
double
balance)
102
{
103
if
((accountType ==
MenuOption.CREDIT_BALANCE
) && (balance <
0
))
104
return true
;
105
else if
((accountType ==
MenuOption.DEBIT_BALANCE
) && (balance >
0
))
106
return true
;
107
else if
((accountType ==
MenuOption.ZERO_BALANCE
) && (balance ==
0
))
108
return true
;
109
110
return false
;
111
}
112
}
// end class CreditInquiry
Enter request
1 - List accounts with zero balances
2 - List accounts with credit balances
3 - List accounts with debit balances
4 - Terminate program
?
1
Accounts with zero balances:
300 Pam White 0.00
Enter request
1 - List accounts with zero balances
2 - List accounts with credit balances
3 - List accounts with debit balances
4 - Terminate program
?
2
Accounts with credit balances:
200 Steve Green -345.67
400 Sam Red -42.16
Fig. 15.8
|
Credit-inquiry program. (Part 3 of 4.)
