I want to create class Matrix which contains array of class Rows.
Class Rows contains array of Cells.
Here is the declaration:
public class Cells
{
public int value = 0;
public int color = 0;
public int background = 0;
}
public class Rows
{
public Cells [] cell = new Cells [10];
public int row_num;
}
public class Matrix
{
public Rows []row = new Rows [100];
public int new_id;
// Constructor
public Matrix (){
. . .
for (int i=0; i<10; i++){
for (int j=0; j<10; j++){
row.cell[j] = i+j;
}
}
. . .
}
}
Creation of class Matrix element
Matrix mtr = new Matrix();
causes Error in Constructor in “row[i].cell[j] = i+j;”
“Object reference not set to an instance of an object”.
Rows are nulls and Cells are missing entirely when I tried to watch an
Object!!!
Obviously something missing in Constructor, but I have no idea how to
fix it.
Please help
:cry:
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