Thread: Having trouble returning an array

Below is a my code, and i have got as far as creating the arrays, but im not too sure how to return them. I have made an effort but got the compiling error: incomplatible types. I have hilighted this code in ***Compiling error***

Thanks in advance!

import java.util.ArrayList;
 
public class ContactList
{
    private ArrayList<Contact> contactList;
 
    private String contactType;
 
    public ContactList()
    {
 
        contactList = new ArrayList<Contact>();
 
 
    }
 
    public void addPersonalContact(String fName, String sName, String street, String town, String partOnePC, String partTwoPC, String phoneNumber)
    {
        contactList.add(new AddPersonalContact(fName, sName, street, town, partOnePC, partTwoPC, phoneNumber));
 
 
    }
 
 
 
    public void addBusinessContact(String fName, String sName, String street, String town, String partOnePC, String partTwoPC, String eMail)
    {
 
        contactList.add(new AddBusinessContact(fName, sName, street, town, partOnePC, partTwoPC, eMail));
 
 
 
    }
 
     public String toString()
    {
        String output = "All Contacts:\n";
        for (ContactList contact : contactList)
        {
            output = output + account + "\n\n" ;
        }
        return output;
    }
 
 
 
}

]CODE]public String toString()
{
String output = "All Contacts:\n";
for (ContactList contact : contactList)
{
output = output + account + "\n\n" ;
}
return output;
} [/CODE]
sorry, forgot to highlight the code, but incompatible types was the full compiling error

errorjava.png

and im not certain about the variable, i didnt really know how to return an array at all, but i have another project that compiles fine with it and i tried to convert it to use it in this program

Thank you very much! And can i ask you for the syntax to pull back data in the array that has either the "personal" or "business" contact type?
Thanks again

I have 2 different contact types- Personal and Business. I need to return both business and personal contacts seperately. I dont know why i said pull back, i meant return, my mind must have gone blank.

public class ContactList
{
    private ArrayList<Contact> contactList;
 
    private String contactType;
 
    public ContactList()
    {
 
        contactList = new ArrayList<Contact>();
 
 
    }
 
    public void addPersonalContact(String fName, String sName, String street, String town, String partOnePC, String partTwoPC, String phoneNumber)
    {
        contactList.add(new AddPersonalContact(fName, sName, street, town, partOnePC, partTwoPC, phoneNumber));
 
 
    }
 
 
 
    public void addBusinessContact(String fName, String sName, String street, String town, String partOnePC, String partTwoPC, String eMail)
    {
 
        contactList.add(new AddBusinessContact(fName, sName, street, town, partOnePC, partTwoPC, eMail));
 
 
 
    }

I just dont know how to sort arrays by a certain string in them.

So there are 2 different contact types (called contactType and is a String) These are automatically assigned when you call either the addPersonalContact or addBusinessContact to the appropriate type.

So if i call the addPersonalContact method I would insert the name, address etc and "personal" will be automatically assigned to this data in the array list (in the form of a string)

All of the data are strings that are set in a different class.

Can you show me the syntax for a comparator class? Ive looked online for it and im not sure how to write this. Im not asking for you to write any code, but can you put it in sort of laymans terms please.