Complete the populateRightEdge method, which should
randomly place images that you want to get (such as "get.gif") and
images that you want to avoid (such as "avoid.gif") in the rightmost
column of the grid. Of course, you get to choose what "randomly"
means here, as long as you use Math.random() somehow.
Perhaps sometimes populateRightEdge shouldn't place anything.
Perhaps sometimes it should place several images. Perhaps one image
should appear often, while another image might appear only on rare
occasions. (If you're unsure, you might just choose some arbitrary
rule for now, and tweak it later.)
Test your code as follows:
Game g = new Game();