Question about converting arrays

[Paul LaBrier]

I have an double subscripted array:
int grades[][] = { { 2772, 126, 169, 194, 177 },
{ 3375, 163, 188, 189, 185 },
{ 4456, 171, 190, 186, 198 } };
The first column is a ID# and the rest are grades.
I would like to create a new single subscript array that only contains the grades. What would be the best way to do this?
Thanks,
Paul

[Barry Gaunt]

You're gonna have to use some kind of loop. Or even loops inside loops. Do some subscripting too, that helps.
-Barry

[Max Habibi]

Well, since I don't want to solve my own Java problems right now...

  //usage int[] mergedGrades = mergeArray(grades[1],grades[2]);
public static int[] mergeArray(int[] grades1,int[] grades2 ){
  int retval[] = null;
  int arrayOneSize = grades1.length;
  int arrayTwoSize = grades2.length;
  retval= new int[arrayOneSize + arrayTwoSize];
  System.arraycopy(grades1, 0,retval, 0, arrayOneSize);
  System.arraycopy(grades2, 0,retval, arrayOneSize, arrayTwoSize);
  return retval;
}

HTH,
M, author
The Sun Certified Java Developer Exam with J2SE 1.4

[Barkat Mardhani]

Hi Paul:

I would like to create a new single subscript array that only contains the grades. What would be the best way to do this?

In that case you will need tocreate single
subscript array as follows:

int grades[] = {126, 169, 194, 177, 163, 188, 189, 185, 171, 190, 186, 198 };

You will need to keep ID# in separate array that
matches that data layout in above array.
Thanks
Barkat

[Max Habibi]

Originally posted by Barkat Mardhani:
Hi Paul:

int grades[] = {126, 169, 194, 177, 163, 188, 189, 185, 171, 190, 186, 198 };

You will need to keep ID# in separate array that
matches that data layout in above array.
Thanks
Barkat

Barkat,
I think that he meant he wanted to do this programatically.
HTH,
M, author
The Sun Certified Java Developer Exam with J2SE 1.4