abstract class yet again into arrays..

[Bradley Jordan]

:
//abstract class:
public abstract class Account
{
private int acctNumber;
private int accBalance;
 

public Account ()
{
accBalance = 0;
}
public Account (int acctNumber, int accBalance)
{
setAcctNumber(acctNumber);
setAccBalance(accBalance);
}
 
public int getAcctNumber ()
{
return acctNumber;
}
 
public void setAcctNumber (int acctNumber)
{
if (acctNumber > 0 )
{
this.acctNumber = acctNumber;
}
}
public int getAccBalance ()
{
return accBalance;
}
 
public void setAccBalance (int accBalance)
{
if (accBalance > 0 )
{
this.accBalance = accBalance;
}
}
public String toString ()
{
String output = "Account # =" + acctNumber +  "\n" + "Account Balance = " + accBalance;
return output;
}
public abstract double computeInterest(int investmentPeriod );
}
 

//subclass
public class Checking extends Account
{
public Checking (int acctNumber, int accBalance, int interestPeriod)
{
super(acctNumber, accBalance);
}
 
public String toString (int acctNumber, int accBalance)
{
String output = "Checking # =" + acctNumber +  "\n" + "Account Balance = " + accBalance;
return output;
}
 
public  double computeInterest (int intrestPeriod)
{
return ((getAccBalance() - 700)* .02)* intrestPeriod;
}

I need to create an arry of the subclass. I need to create a for loop that instanitates 5 objects of the Checking class and then a for loop that prints out the toString method and prints out the amount of interest for each object. I have three as the interstperiod.
this is what I have so far:

public class AccountArray
{
 
public static void main (String [] args)
{
Checking [] bankSavings = new Checking [5];
int a = 100;
int b = 1000;
for (int x = 0; x < bankSavings.length; ++x)
{
bankSavings [x] = new Checking (a, b, 3);
a = a + 1;
b = b + 1000;
++x;
}
for (int x = 0; x < bankSavings.length; ++x)
{
System.out.println(bankSavings[x].toString());
++x;
}
}

this complies but it is only printing the first three account numbers and account balances. Why is that. If I add the bankSavings[x].computeIntrest () to it. It can't find it.
AccountArray.java:24: cannot find symbol
symbol : method computeIntrest()
location: class Checking
System.out.println(bankSavings[x].toString()+ bankSavings[x].computeIntrest());

Please help. Maybe I need a diffent way of getting the interest earned.

[Chandra Bhatt]

Jordon,

computeInterest() takes one int argument, you are making call
to it without any argument!

check the missing spelling of computeInterest() too.


Regards,
cmbhatt

[Rahul Shilpakar]

yes, it's working fine with my programe. i think you called computeinterest()with out argument , give integer argument to it.