Java Webservice and vectors

Question

i will like some advice on webservice that im writing, basically was trying to implement a method with code......

public static void writeToCustomerFile(Vector<Customer> customer) throws IOException
{
    String strFilePath = "./src/customer.txt";
    BufferedWriter writer = new BufferedWriter(new FileWriter(strFilePath));
    for (int i = 0; i < customer.size(); i++) {
        writer.write("id," + customer.get(i).getName() + "," + customer.get(i).getSurname()+","+customer.get(i).getAccount()+","+customer.get(i).getBalance()+"\n");
    }
    writer.close();
}

but it keeps on giving the error message: illegal start of type.

im trying to write this to a file on the serverside using a vector

Bless frederick carter

Answer 1

Did you import class Vector?

import java.util.Vector;

By the way, Vector is an old legacy collection class. You should use List and ArrayList in new code - only use Vector when you are dealing with old legacy code which you can't change.

import java.util.List;

public static void writeToCustomerFile(List<Customer> customers) throws IOException
{
    // ... code here ...
}

To iterate over a list, use a "foreach"-style loop instead of explicitly looking up elements by index:

for (Customer cust : customers) {
    writer.write("id," + cust.getName() + "," + cust.getSurname() + "," +
        cust.getAccount() + "," + cust.getBalance() + "\n");
}