How do you set up code that loops through a range summarizing items that
meet a certain criteria?

For example, If the date in column A = 01-31-05 then add up the amounts.

Column A Colume B
01-31-05 50.00
01-31-05 100.00
02-01-05 200.00

desired result would be 150.00.

What would the code look like?

Thanks in advance