Could somebody please explain how to use the main() method properly.
I have read numerous books but none seem to help.

I have two classes - Payment and TestPayment.

In TestPayment I have the following code:

public class TestPayment
{
   public static void main(String[] args)
   {
       // Create four Payment instances
       Payment p1 = new Payment(2490, "Euros");
       Payment p2 = new Payment(2490, "Euros");
       Payment p3 = new Payment(2491, "Euros");
       Payment p4 = new Payment(2490, "Pesos");
       Payment p5 = new Payment(49, "Pesos");
       Payment p6 = new Payment(9, "Pesos");
       Payment p7 = new Payment(10, "Pesos");
   }
}

In the Payment class I have the following method to create:

  public boolean equals(Object o)
  {
  }
In here I have to check if the payments are the equal to each other,
firstly the amount, followed by the currency.

The amount is an int value(anAmount) and the currency a String value
(aCurrency)

How do I iterate through each Payment to see if they are equal or not?

Thanks in advance,

Paul