Using an ArrayList - I can't get size() to work

Question

Hello,
I am using an ArrayList to store customers and info. I am trying to use the size method to determine the number of elements in the list. I keep receiving the following message in the Bank.class:
C:\Documents and Settings\Administrator\Application Data\Java Homework\InProgress\Bank.java:82: cannot resolve symbol
symbol : method size ()
location: class Customer[]
          for (int i=0; i<customers.size(); i++)
^
1 error
----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete.
I would appreciate any help that you can offer.
Below is the code:
// Driver.java
import java.util.ArrayList;
public class Driver
// Stores and modifies a list of band members.
public static void main (String[] args)
          Bank myBank = new Bank();
          String name = "Elvis";
          String num = "3034874454";
          double bal = 100.00;
          int account = 0;
          myBank.addCust(name, num, bal);
          myBank.custDep(name, num, bal);
          myBank.custWth(name, num, bal);
          myBank.accrueInt(name, num, bal);
          myBank.prtCusts(account);
} // end of driver class
// Author: JB
// Bank.java
import java.util.ArrayList;
public class Bank
{          // Begin Bank Class
// Stores and modifies a list of band members.
     double trans = 5.00, rate = .1; // Set a trans amount for testing
     int Array_Size = 30;
     String cname, cnum;
     double cbal;
     Customer[] customers = new Customer[Array_Size];
     public void addCust(String CName, String PNum, double Bal)
//     public void addCust()
     {     //     Begin Add Customer method
          customers[0] = new Customer();
          customers[0].setCustomerName(CName);
          customers[0].setPhoneNumber(PNum);
          customers[0].setBalance(Bal);
     } // End
     public void custDep(String CName, String PNum, double Bal)
     {  // Begin   **  add a customer for testing of update
          customers[0] = new Customer();
          customers[0].setCustomerName(CName);
          customers[0].setPhoneNumber(PNum);
          customers[0].setBalance(Bal);
          Customer customer = customers[0];
          customers[0] = new Customer();
          customers[0].setCustomerName("Elvis");
          customers[0].setPhoneNumber("Goodyear");
          double bal = customer.getBalance();
          double new_dep = bal + trans;
          customers[0].setBalance(new_dep);
     }     // End
     public void custWth(String CName, String PNum, double Bal)
     {  // Begin   **  add some customers for testing
          customers[0] = new Customer();
          customers[0].setCustomerName("Elvis");
          customers[0].setPhoneNumber("3034897874");
          customers[0].setBalance(5600.25);
          Customer customer = customers[0];
          customers[0] = new Customer();
          customers[0].setCustomerName("Elvis");
          customers[0].setPhoneNumber("Goodyear");
          double bal = customer.getBalance();
          double new_dep = bal - trans;
          customers[0].setBalance(new_dep);
//          System.out.println ("Number of accounts " + customers.size());
     }     // End
     public void accrueInt(String CName, String PNum, double Bal)
     {  // Begin   **  add some customers for testing
          customers[0] = new Customer();
          customers[0].setCustomerName("Elvis");
          customers[0].setPhoneNumber("3034897874");
          customers[0].setBalance(10.00);
          Customer customer = customers[0];
          customers[0] = new Customer();
          customers[0].setCustomerName("Elvis");
          customers[0].setPhoneNumber("Goodyear");
          double bal = customer.getBalance();
          double new_dep = bal * (1 + rate);
          customers[0].setBalance(new_dep);
     }     // End
     public void prtCusts(int account)
          System.out.println("Customer Listing");
          for (int i=0; i<customers.size(); i++)
                    Customer customer = customers;
                    String cpn = customer.getPhoneNumber();
                    String cn = customer.getCustomerName();
                    double bal = customer.getBalance();
                    System.out.println(cn + " " + cpn + " Balance:" + bal);
} // End of class
import java.util.ArrayList;
public class Customer
private String CustomerName;
private String phoneNum;
private double balance;
public String getCustomerName() {
return CustomerName;
public void setCustomerName(String CustomerName) {
this.CustomerName = CustomerName;
public String getPhoneNumber() {
return phoneNum;
public void setPhoneNumber(String phoneNum) {
this.phoneNum = phoneNum;
public double getBalance() {
return balance;
public void setBalance(double balance) {
this.balance = balance;
Thank you,
JB

Answer 1

customers is declared as an array; there is no method
called size() associated with arrays. Try
customers.length.rgairns
I suppose I should have said that to begin with. You certainly took the direct approach.
thanks
walker