Chapter 3G, Problem 5PP

Program Plan Intro

Café Wall

Program plan:

• Import necessary package.
• Create a class “DrawImage”,
  • Define the “main()” method,
    • Construct “DrawingPanel” object.
    • Create Graphics object and call the “getGraphics()” method .
    • Set the panel’s background color as “GRAY”.
    • Call the function “draw_row()” to draw the top left corner.
    • Call the function “draw_row()” to draw the top left individual row.
    • Call the function “draw_Grid()” to draw the bottom left grid.
    • Call the function “draw_Grid()” to draw the middle grid.
    • Call the function “draw_Grid()” to draw the top right grid.
    • Call the function “draw_Grid()” to draw the bottom right grid.
  • Define the method “draw_Pair()” to draw the pairs of black and white box,
    • Set the color to “BLACK”.
    • Fill the rectangle with the black color for the specified range.
    • Set the color to “BLUE”.
    • Draw the line with blue color from top left corner to bottom right corner in a square.
    • Draw the line with blue color from top right corner to bottom left corner in a square.
    • Set the color to “WHITE”.
    • Fill the rectangle with white color for the specified range.
  • Define the method “draw_row()” to draw the pairs in a row,
    • Execute loop over number of pairs,
      • Call the method “draw_Pair()” to draw the bricks with black and white combination.
  • Define the method “draw_Grid()” to draw the row pairs,
    • Execute loop over number of vertical pairs,
      • Call the method “draw_row()” to draw the odd number row in a grid.
      • Call the method “draw_row()” to draw the even number row in a grid.
      • Increase the coordinate “y” by “2*size1*4”.