public class Transaction implements java.io.Serializable {
    String initiatorName; 
    int initiatorID;
    int amount;
    String direction; 
    public Transaction(String name, int id, int amount, String direction) {
        this.initiatorName = name; 
        this.initiatorID = id; 
        this.amount = amount; 
        this.direction = direction; 
    }
    public int update(Client client) throws java.rmi.RemoteException {
        System.out.println("Visiting " + client.report() + " sent by " + this.initiatorID); 
        System.out.println(this.amount + " points " + this.direction); 
        int result = client.getBalance(); 
        if (this.direction.equals("sent")) {
          result += this.amount; 
        } else {
          result -= this.amount; 
        } 
        System.out.println("Transaction now coming through..."); 
        return result; 
    }
}