Map

    Map mapStateNumbers;
    MapEnumerator enumerator;
    CustTable custTable;
    mapStateNumbers = new Map(Types::String, Types::Integer);
    while select custTable
    {
        if(mapStateNumbers.exists(custTable.stateName()))
        {
        mapStateNumbers.insert(custTable.stateName(), mapStateNumbers.lookup(custTable.stateName())+1);
        }
        else
        {
        mapStateNumbers.insert(custTable.StateName(), 1);
        }
    }
    enumerator = mapStateNumbers.getEnumerator();
    while (enumerator.moveNext())
    {
        info(strfmt("%1 customers are located in %2.", enumerator.currentValue(), enumerator.currentKey()));
    }