Trying to use AggregateResult for the first time, getting error " Missing '<EOF>' at 'public' "

I am trying to use AggregateResult to build a controller for a VF page.  This is the fist time that I am using this function and am recieving the error: 

Error: Compile Error: Missing '<EOF>' at 'public' at line 10 column 1

public class CurrentWeekDY{
    String Campaign {get; set;}
    String Delivery {get; set;}
        public DelSum(string c, string d){
        this.Campaign=c;
        this.Delivery=d;
    }
}
public List<DelSum> DelSumList = new List<DelSum>();
public List<DelSum> getDelSumOut(){
    AggregateResult[] AgR = [SELECT Campaign_TL__c, SUM(Spend__c) FROM TL_Client__c WHERE CWDelivery__c = TRUE GROUP BY Campaign_TL__c ORDER BY Campaign_TL__c]; 
    for (AggregateResult DYList : AgR) { 
        DelSumList.add(new DelSum(String.valueOf(DYList.get('Campaign_TL__c')), String.valueOf(DYList.get('expr0')), String.valueOf(DYList.get('expr1'))));
    }
    return DelSumList;
}