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public class Data
{
public static final int MAX = 1000; //value needed for
implementation
private int[][] grid;
//This constructor was added so
that we can implement the Data class.
public Data(int[][] tmpGrid)
{
grid = tmpGrid;
}
/**Fills all elements of grid
with randomly generated values, as described in part A
* Precondition: grid is not null
*
grid has at least one element
*/
public void repopulate()
{
//to be implemented in part A
for (int r=0; r<grid.length; r++)
{
for (int c=0; c<grid[r].length; c++)
{
grid[r][c] = (int)(Math.random() * MAX) + 1; //1 to MAX
while(grid[r][c] % 10 != 0 || grid[r][c] % 100 == 0)
{
grid[r][c] = (int)(Math.random() * MAX) + 1; //1 to MAX
}
}
}
}
/**Return the number of colours
in grid that are in increasing order, as described
* in part B
* Precondition: grid is not null
*
grid has at least one element
*/
public int countIncreasingCols()
{
//to be implemented in part B
int incCols = 0;
for (int c=0; c<grid[0].length; c++)
//assuming
rectangular 2D array
{
boolean increasing = true;
for (int r=0; r<grid.length-1; r++)
{
if (grid[r][c] > grid[r+1][c])
{
increasing = false;
}
}
if (increasing == true)
{
incCols++;
}
}
return incCols;
}
//Added to display grid's
content
public String toString()
{
String
s = "";
for (int r=0; r<grid.length; r++)
{
for (int c=0; c<grid[r].length; c++)
{
s = s + grid[r][c] + " ";
}
s = s + "\n";
}
return s;
}
}
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