I am trying to color a grid in Java program to match a certain country flag. (Je

Question

I am trying to color a grid in Java program to match a certain country flag. (Jersey)

The program works by asking the user for a height/size (9 in the picture) and the width is automatically equal to (height * 2). (this is already done)

so far I have the diagonal line that goes from top to bottom as shown below:

private static void Jersey(MyGrid grid){
       int height = grid.getHt();
       int width = grid.getWd();
       for (int row = 0; row <= height - 1; row++){
           for (int col = 0; col <= width - 1; col++){
               if(col == row * 2 || col == row * 2 + 1){
                   grid.setColor(row, col, Color.RED);
               }
           }
       }
   }

What I need help with is drawing the reverse diagonal line from bottom to top.

I tried:

for (int row = 0; row <= height - 1; row++){
           for (int col = width - 1; col >= 0; col--){
               if(col == row * 2 || col == row * 2 + 1){
                   grid.setColor(row, col, Color.RED);
               }
           }
       }

but it's not working!

I am trying to color a grid in Java program to match a certain country flag. (Jersey) The program works by asking the user for a height/size (9 in the picture) and the width is automatically equal to (height * 2). (this is already done) so far I have the diagonal line that goes from top to bottom as shown below: What I need help with is drawing the reverse diagonal line from bottom to top. I tried: but it's not working!

Explanation / Answer

for (int row = 0; row <= height - 1; row++){
            for (int col = width - 1; col >= 0; col--){
                //if(col == row * 2 || col == row * 2 + 1){
                if(col == (width - 2*row - 1) || col ==(width - 2*row - 2)){
                    grid.setColor(row, col, Color.RED);
                }
            }
        }

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