Checkerboard V1 Codehs: 9.1.6

if (frontIsClear()) move(); col++; else break;

In CodeHS Exercise 9.1.6: Checkerboard, v1, the goal is to initialize an 8x8 grid where certain rows represent checker pieces (1s) and others represent blank squares (0s)

The canvas is 400×400, but squares don't align perfectly. Fix: Calculate the window size dynamically from the square size and number of squares, as shown in the constants above.

: Create an empty list called board and fill it with eight rows of eight zeros. 9.1.6 checkerboard v1 codehs

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: Use a loop to append three rows, each containing eight 1s. Fill the Middle Rows : Append two rows of eight 0s. Fill the Bottom Rows : Append another three rows of eight 1s. Function Call : Pass the completed list to the print_board Common Implementation Strategies Simple Append board.append([1] * 8)

# Initialize the board board = []

This is the most efficient way to handle alternating patterns in programming.

// 3. Add the rectangle to the array board[row][col] = rect;

Copy the code above, paste it into the CodeHS editor, and run it. You should see a perfect 8×8 checkerboard. If you run into issues, double-check your spelling of Color.GRAY (remember: American English spelling) and ensure you have imported acm.graphics.* and java.awt.* . if (frontIsClear()) move(); col++; else break; In CodeHS

To match the checkerboard layout, you must use nested loops to iterate through the grid. Use a conditional statement to identify rows (top) and rows 3. Assign Alternating Values

function start() var row = 1; while (true) // Fill current row var col = 1; while (true) if (row % 2 == 1) if (col % 2 == 1) putBeeper(); else if (col % 2 == 0) putBeeper();