Can a 2D array have more than one type?

Question

Are multi-dimensional arrays limited to only one type? For example;
int[][] array = new int[2][10];
In this example, the array only holds only integers.
I would like to construct a 2D array with different types to represent data pairs. In my example, I would like the first 'column' to hold Date objects, and the second 'column' to hold Double objects (the data pair comprises a datestamp and a rainfall reading).
I don't want to use a hashmap because I want to preserve the order, and then to iterate through the array in subsequent calculations. I would prefer not to use an array of Strings because of the overhead needed to convert the Strings to Dates and Doubles. I would prefer not to have to handle two arrays - one for the Dates and one for the Doubles.
Any comments would be appreciated.

Answer 1

Hi,
I see you said that this question is answer, but I'm not sure you didn't just get frustrated and gave up. Anyway, if you haven't found a solution yet then you can try the following;
make a class called, for example, rfItem (which stand for rainfall item) e.g. import java.sql.Timestamp;
public class rfItem
    private Timestamp TIME;
    private Double RAINFALL;
    rfItem(Timestamp t, Double r)
         TIME = t;
         RAINFALL = r;
    public void setRainfall(Double r)
         RAINFALL = r;
    public Double getRainfall()
         return RAINFALL;
    public void setTime(Timestamp t)
         TIME = t;
    public Timestamp getTime()
         return TIME;
}Then when you are in the class where you want this double array, just create a single array with rfItem's as the elements, i.e.
         rfItem[] test = new rfItem[]you now have an array where each element of the array stores a double and a timestamp. Is this what you where looking for?