might not have been initialized

[mike hew]

Well I'm back, lol.
Thank you all for the great advise, has help alot.

Have all 3 programs written with only 2 Errors.

Can someone help explain the following to me?

-Called Compiler C:\PROGRA~1\Java\JDK15~1.0_0\bin\javac.exe-
-Target File: G:\NEW9~1\CheckingAccountsTest.java-
G:\NEW9~1\CheckingAccountsTest.java:98: variable currentAcccount might not have been initialized
sumOfBeginningBalances += currentAcccount.getBalance();
^
G:\NEW9~1\CheckingAccountsTest.java:130: variable currentAcccount might not have been initialized
sumOfBeginningBalances += currentAcccount.getBalance();
^
2 errors

-Finished-

 //public class file name
public class CheckingAccountsTest 
{
private static final int indexForAccountId = 0;
private static final int indexForAccountType = 2;
private static final int indexForBalance = 5;
private static final int indexForDepositAmount = 2;
private static final int indexForFirstName = 3;
private static final int indexForLastName = 4;
private static final int indexForRecordType = 1;
private static final int indexForWithdrawalAmount = 2;
private static final String recordTypeForDeposit = "CKD";
private static double sumOfBeginningBalances = 0.0;
private static double sumOfCreditCardAdvances = 0.0;
private static double sumOfDeposits = 0.0;
private static double sumOfEndingBalances = 0.0;
private static double sumOfFees = 0.0;
private static double sumOfOverdrafts = 0.0;
private static double sumOfWithdrawals = 0.0;
 

public static void main(String args[])
{

MyCsvFile myFile = new MyCsvFile("monthlyBankTransactions,v05.txt");
//display big bank title line
System.out.println("\nBig Bank: Monthly Checking Account Activity\n");
//display the first column heading line
System.out.println("----------- Account ----------- Beginning\t\t    With-\t\t   Ending\tOver-\tCredit Cd");
//display the second column heading line
System.out.println("     Name\t   Id    Type\t Balance   +   Deposit   -  drawal   -    Fee   =  Balance\tdraft\t Advance");
 
//Get 1st record from CSV file using method readARecord
myFile.readARecord();
 
while(myFile.getEofFound() == false)
{
 
//A-1-2-09)
String []myFields = myFile.getCsvRecordFieldArray();
//A-1-2-10)
if(myFields[indexForAccountType].equals(CheckingAccount.getAccountType())){
   CheckingAccount currentAccount = new CheckingAccount(myFields[indexForAccountId], 
   myFields[indexForFirstName], myFields[indexForLastName], Double.parseDouble(myFields[indexForBalance]));
   handleAccount(currentAccount, myFile, myFields);
   currentAccount = null;
   }
   else
   {
   CheckingAccountPlus currentAccount = new CheckingAccountPlus(myFields[indexForAccountId], 
   myFields[indexForFirstName], myFields[indexForLastName], Double.parseDouble(myFields[indexForBalance]));
   handleAccount(currentAccount, myFile, myFields);
   currentAccount = null;
 
   }//end if
 
}//end while
 
//DISPLAY the report-total line using the following arguments: �Report Totals�, sumOfBeginningBalances, 
//sumOfDeposits, sumOfWithdrawals, sumOfFees, sumOfEndingBalances, sumOfOverdrafts, sumOfCreditCardAdvances, �**�
System.out.printf("Report Totals", sumOfBeginningBalances, sumOfDeposits, sumOfWithdrawals, sumOfFees,
sumOfEndingBalances, sumOfOverdrafts, sumOfCreditCardAdvances, "**");
 
//DISPLAY the �The information in the above report� line with the following arguments:
// myFile.getCountOfRecords()
System.out.printf("The information in the above report is from the 17 records in the following file:",
myFile.getCountOfRecords());
 
//DISPLAY the �Path to file� line with the following arguments: myFile.getFilePath()
System.out.printf("Path to file:", myFile.getFilePath());
 
//DISPLAY the �Name of file� line with the following arguments: myFile.getFileName()
System.out.printf("Name of file:", myFile.getFileName());
 
//DISPLAY the �End of program� line
System.out.println("\nEnd of program");
 
}// end main method
 

//Exhibit A-1-3: Pseudo code for Overloaded Method handleAccount of Class CheckingAccountsTest
//This private static method has no return value, and has three parameters: currentAccount of type CheckingAccount, myFile of type MyCsvFile and myFields of type String array.
public static void handleAccount(CheckingAccount currentAccount, MyCsvFile myFile, String [] myFields)
{

CheckingAccount currentAcccount;
sumOfBeginningBalances += currentAcccount.getBalance();
printBeginningBalance(currentAccount);
myFile.readARecord();
myFields = myFile.getCsvRecordFieldArray();

 while (myFile.getEofFound()==false)
{
currentAccount.getAccountId().equals (myFields[indexForAccountId]);
if(myFields[indexForRecordType].equals(recordTypeForDeposit)){
        handleDeposit(currentAccount, Double.parseDouble(myFields[indexForDepositAmount]));
      }
      else
      {
         handleWithdrawal(currentAcccount,Double.parseDouble(myFields[indexForWithdrawalAmount]));
 
  }//end if
 
myFile.readARecord();
myFields = myFile.getCsvRecordFieldArray();

}//end while

sumOfEndingBalances += currentAcccount.getBalance();
printEndingBalance(currentAccount);

}//end Overloaded Method handleAccount method
 
//Exhibit A-1-4: Pseudo code for Overloaded Method handleAccount of Class CheckingAccountsTest
///This private static method has no return value, and has three parameters: currentAccount of type CheckingAccountPlus, myFile of type MyCsvFile and myFields of type String array.
public static void handleAccount(CheckingAccountPlus currentAccount, MyCsvFile myFile, String [] myFields)
{
CheckingAccountPlus currentAcccount;
sumOfBeginningBalances += currentAcccount.getBalance();
printBeginningBalance(currentAccount);
myFile.readARecord();
myFields = myFile.getCsvRecordFieldArray();

while (myFile.getEofFound()==false)
{
currentAccount.getAccountId().equals (myFields[indexForAccountId]);
if(myFields[indexForRecordType].equals(recordTypeForDeposit)){
    handleDeposit(currentAccount, Double.parseDouble(myFields[indexForDepositAmount]));
      }
      else
      {
         handleWithdrawal(currentAcccount,Double.parseDouble(myFields[indexForWithdrawalAmount]));
 
  }//end if
 
myFile.readARecord();
myFields = myFile.getCsvRecordFieldArray();

}//end while
 
sumOfEndingBalances += currentAcccount.getBalance();
printEndingBalance(currentAccount);
 
}//end Overloaded Method handleAccount method

//Exhibit A-1-5: Pseudo code for Overloaded Method handleDeposit Method of
//Class CheckingAccountsTest
private static void handleDeposit(CheckingAccount currentAccount, double amount)
{
sumOfDeposits += amount;
System.out.printf("$,%.2f", amount);
}

//Exhibit A-1-6: Pseudo code for Overloaded Method handleDeposit Method of
//Class CheckingAccountsTest
private static void handleDeposit(CheckingAccountPlus currentAccount, double amount)
{
sumOfDeposits += amount;
System.out.printf("$,%.2f", amount);
}

// A-1-7: Pseudo code for Overloaded Method handleWithdrawal Method of
//Class CheckingAccountsTest
//This private static method has no return value, and has two parameters: currentAccount of type CheckingAccount and amount of type double.
private static void handleWithdrawal(CheckingAccount currentAccount, double amount)
{
if (currentAccount.makeWithdrawal(amount) == true){
sumOfWithdrawals += amount;
System.out.printf("$,%.2f",amount);
}else{
double overdraftFee = currentAccount.getOverdraftFee();
sumOfFees += overdraftFee;
sumOfOverdrafts += amount;
System.out.printf("$,%.2f",overdraftFee, amount);

}//end if

}//end handleWithdrawal method
 
//Exhibit A-1-8: Pseudo code for Overloaded Method handleWithdrawal Method of
//Class CheckingAccountsTest
private static void handleWithdrawal(CheckingAccountPlus currentAccount, double amount)
{
if (currentAccount.makeWithdrawal(amount) == true){
sumOfWithdrawals += amount;
System.out.printf("$,%.2f",amount);
}else{
double creditCardAdvance = currentAccount.getCreditCardAdvance();
sumOfCreditCardAdvances += creditCardAdvance;
sumOfWithdrawals += currentAccount.getActualWithdrawal();
System.out.printf("$,%.2f",currentAccount.getActualWithdrawal(),creditCardAdvance);

}//end if

}//end CheckingAccountPlus handleWithdrawal method

//This private static method has no return value, and has one parameter: currentAccount of type CheckingAccount. 
private static void printBeginningBalance(CheckingAccount currentAccount)
{
System.out.printf("$,%.2f",
currentAccount, currentAccount.getAccountId(), CheckingAccount.getAccountType(), currentAccount.getBalance());
}

//this private static method has no return value, and has one parameter: currentAccount of type CheckingAccountPlus.
private static void printBeginningBalance(CheckingAccountPlus currentAccount)
{
System.out.printf("       ",
currentAccount, currentAccount.getAccountId(), CheckingAccountPlus.getAccountType(), currentAccount.getBalance());
}
//Exhibit A-1-11: Pseudo code for Overloaded Method printEndingBalance of
//class CheckingAccountsTest
private static void printEndingBalance(CheckingAccount currentAccount)
{
System.out.printf("Account Totals", currentAccount.getAccountId(), CheckingAccount.getAccountType(),
currentAccount.getBeginningBalance(), currentAccount.getDeposits(), currentAccount.getWithdrawals(), 
currentAccount.getFees(), currentAccount.getBalance(), currentAccount.getOverdrafts(), " *");
}

//Exhibit A-1-12: Pseudo code for Overloaded Method printEndingBalance of
//Class CheckingAccountsTest
private static void printEndingBalance(CheckingAccountPlus currentAccount)
{
System.out.printf("Account Totals", currentAccount.getAccountId(), CheckingAccount.getAccountType(),
currentAccount.getBeginningBalance(), currentAccount.getDeposits(), currentAccount.getWithdrawals(),
currentAccount.getBalance(), currentAccount.getSumOfCreditCardAdvances(), " *");
}


}//end class CheckingAccountsTestt 

[Keith Lynn]

When you create an instance of a class, if you don't explicitly assign values to the instance variables, they are given default values.

However, this is not true with local variables. You have to make sure you initialize local variables before any statement that tries to use their value.

[mike hew]

So our you saying something like this,

CheckingAccount currentAcccount = new CheckingAccount(arguments); ?

[Kaydell Leavitt]

Hi.

I think that the problem is that the variable in question is a local variable and it is initialized inside of a conditional. I think that you need to initialize it in the main block of code for that method.

-- Kaydell

[Jeroen T Wenting]

yes, local variables MUST be explicitly initialised before they're first read.
If you initialise them in conditional statements structured in a way that the compiler cannot ascertain one will always be executed, it will generate that error.
Either restructure your conditionals so the compiler can ascertain your local will always be initialised (if possible) or initialise it explicitly to something at declaration (most people use null for that).