Ok, so I have to write a program for school that will read data from a text file, split the data (comma delimited) into the correct type, pass that information on to a class, store the class object into an array.

This is what I have so far:

import java.io.*;


public class BankTest{

public static void main(String [] args)throws IOException{
    
    /* ********************************************************
     * 
     * This was the first exercise to send data to the 
     * BankAccount class.
     * 
    BankAccount ba1 = new BankAccount();
    BankAccount ba2 = new BankAccount(135687, "chris servin",
                                     100.0,false);
    System.out.println(ba1.getOwner());
    System.out.println(ba1.getExperiation());
    System.out.println(ba2.getOwner());
    System.out.println(ba2.getExperiation());
    System.out.println(ba2.getBalance());
    ba2.deposit(200.0);
    System.out.println (ba2.getStatus());
    System.out.println(ba2.getBalance());
    ba2.withdrawl(100.0);
    System.out.println(ba2.getBalance());
    System.out.println(ba2.toString());
    ***********************************************************
    */
  
  int size;
  String str;
  String db[];
  
  BufferedReader input =  new BufferedReader(new FileReader("database.txt"));
  
  str = input.readLine();
  size = Integer.parseInt(str);
  
  db = new String[size];
  
  str = input.readLine();
  
  //System.out.println(db);
  
  for (int i = 0; i < size; i++){
    
  String[] info = str.split(",");
  
  //BankAccount ba(i) = new BankAccount();
  
  BankAccount ba = new BankAccount(int info[0], String info[1], 
                          double [2], boolean [3]);  
      
  //System.out.println(info);
    

  
  
  str = input.readLine();
  }
  
  }
}

Now I don't want too much help writing this, but I am stuck, I have 2 errors that keep coming up that I just can't figure out how to solve.

The first is if I use the statement

BankAccount ba(i) = new BankAccount();

I get - Error: D:\EPCC AA Computer Science\Spring Semester 2011\Java 2\Programs\BankTest.java:49: ';' expected

The second error I get if I remove the (i) variable (which I wanted to create individual instances of the ba object is:

Error: D:\EPCC AA Computer Science\Spring Semester 2011\Java 2\Programs\BankTest.java:51: '.class' expected

I am getting this error on the line where I am attempting to pass the elements in the info array created in the line.split statement.

Can someone please help, I'm at a loss as to how to accomplish what I am trying to get done.

Thanks

You can't create a new array instance like that.
First you create a new array of BankAccounts, giving it a size. This will have all its elements initially null.
Then you can store a BankAccount into any of the array elements:

BankAccount[] accounts = new BankAccount[10]; 
// create array of 10 BankAccount references, all null

accounts[4] = new BankAccount(...  
// store ref to a new BankAccount in array element 4

After some discussion with my instructor, he pointed me in the right direction and I've come up with:

import java.io.*;


public class BankTest{

public static void main(String [] args)throws IOException{
    
    /* ********************************************************
     * 
     * This was the first exercise to send data to the 
     * BankAccount class.
     * 
    BankAccount ba1 = new BankAccount();
    BankAccount ba2 = new BankAccount(135687, "chris servin",
                                     100.0,false);
    System.out.println(ba1.getOwner());
    System.out.println(ba1.getExperiation());
    System.out.println(ba2.getOwner());
    System.out.println(ba2.getExperiation());
    System.out.println(ba2.getBalance());
    ba2.deposit(200.0);
    System.out.println (ba2.getStatus());
    System.out.println(ba2.getBalance());
    ba2.withdrawl(100.0);
    System.out.println(ba2.getBalance());
    System.out.println(ba2.toString());
    ***********************************************************
    */
  
  int size;
  String str;
  
  BufferedReader input =  new BufferedReader(new FileReader("database.txt"));
  
  str = input.readLine();
  size = Integer.parseInt(str);
  
  String[] db = new String[size];
  
  str = input.readLine();
  
  while (str != null){
    
    String[] info = str.split(",");
    
    int num;
    double money;
    boolean status;
 
    num = Integer.parseInt(info[0]);
    money = Double.parseDouble(info[2]);
    status = Boolean.parseBoolean(info[3]);
    
    BankAccount ba = new BankAccount(num, info[1], 
                                   money, status);
  
    System.out.println(ba);
    
    

  
  
    str = input.readLine();
  }
  
  }
}

Now I just need to figure out how to store each instance of ba into the db array.

db is an array of Strings, so you can't store BankAccounts in it. Please review my previous post.

How can I set up an array of objects instead of strings?

Ah, let me see if I can't correct that based on the information you've given me, thank you

By golly, I think I got it. It's working exactly as intended. Took me a few minutes to figure out how to store the instances of each object into the array once I corrected how I initialized the array (Thank's for your help James) but this is what I have now, and it appears to be working whenever I print out a specific element.

import java.io.*;


public class BankTest{

public static void main(String [] args)throws IOException{
    
    /* ********************************************************
     * 
     * This was the first exercise to send data to the 
     * BankAccount class.
     * 
    BankAccount ba1 = new BankAccount();
    BankAccount ba2 = new BankAccount(135687, "chris servin",
                                     100.0,false);
    System.out.println(ba1.getOwner());
    System.out.println(ba1.getExperiation());
    System.out.println(ba2.getOwner());
    System.out.println(ba2.getExperiation());
    System.out.println(ba2.getBalance());
    ba2.deposit(200.0);
    System.out.println (ba2.getStatus());
    System.out.println(ba2.getBalance());
    ba2.withdrawl(100.0);
    System.out.println(ba2.getBalance());
    System.out.println(ba2.toString());
    ***********************************************************
    */
  
  int size;
  String str;
  
  BufferedReader input =  new BufferedReader(new FileReader("database.txt"));
  
  str = input.readLine();
  size = Integer.parseInt(str);
  
  BankAccount[] db = new BankAccount[size];
  
  str = input.readLine();
  int i = 0;
  while (str != null){
    
    String[] info = str.split(",");
    
    int num;
    double money;
    boolean status;
 
    num = Integer.parseInt(info[0]);
    money = Double.parseDouble(info[2]);
    status = Boolean.parseBoolean(info[3]);
    
    BankAccount ba = new BankAccount(num, info[1], 
                                   money, status);
  
    db[i] = ba;
    
    i++;
  
    str = input.readLine();
  }
  
     System.out.println(db[9]);
  
  }
}

Excellent!
Suggest you mark this thread "solved" - if you have any more problems you should start a new thread.
J

ps - better version of line 64

for (int i=0; i < db.length; i++) System.out.println(db);

Excellent!
Suggest you mark this thread "solved" - if you have any more problems you should start a new thread.
J

ps - better version of line 64

for (int i=0; i < db.length; i++) System.out.println(db);

The origional line 64 was just my tester to make sure it was working correctly. I modified the line within the while loop to print out all of the results.

db[i] = ba;
     System.out.println(db[i]);
    i++;

this is my print line for the final product.