Converting float array to Float array

Question

Hi, is there any efficent way to convert float[][] to Float[][] without iterating the array and creating Float object for each float data? I have a method performing calculations based on a 2D array( float[][]) and then need to store the result in a TreeMap data structure. The "put" method for TreeMap ask Object type.
Thanks in advance!

Answer 1

1) No
2) An array of float is an object as well:
Object obj = new float[]{1.0, 2.0, 3.0};3) What you want to store? If your structure is somewhat like this:
float[][] f = {
   { 1.0, 2.0, 3.0 },
   { 4.0, 5.0, 6.0 },
};and you want to "index" your TreeMap by the first element of each row of your float[] array, you could do something like this:
    SortedMap sm = new TreeMap();
    sm.put(new Float(f[0][0]), f[0]); // Arrays are objects as well
    sm.put(new Float(f[1][0]), f[1]); //and so on.