Help with Java, how to add to an arraylist from a class

[Sdot]

Hello, I had to create a class that acts as a cash register, now I just need to figure out how to add items to the array list.

 

My assignment says, " Create a main application which creates a CashRegister object, adds several items to the object, then tests all of its methods. "

 

If someone could get me started I would greatly appreciate it. I mainly don't know how to reference the array. I named the arraylist items but this.items is not working.

I will attach the class file and the file with main.

 

CashRegister.java is the class file and L04P8_16.java is the file that has main, which will test the CashRegister class.

 

Thank you.

L04P8_16.java

CashRegister.java

[Ningols]

First

register.addItem(this.items());

is wrong : the method addItem can only add 1 item, and not an arrayList
Plus, this.items is a variable, so no ()

If you want to add some items to your register object, you need to create the items first with something like that

double item1 = 1.1;
double item2 = 2.2;

To add those to register 

register.addItem(item1);
register.addItem(item2);

 

[deleted_member_030719]

If it's the main class create a constructor that allows you to use the main class.

 

Example:

MainClassName m;

 

public ClassYouAreAccessingFrom(MainClassName main) {

this.m = main;

}

 

Then use this:

 

m.ArrayListName.add(string);

 

In the main class or whatever class that creates this class do this:

new ClassYouAreAccessingFrom(m);

 

If you don't understand what I am saying, pm me and I'll explain it better.