(Eight Queens animation) Modify Listing 22.11, EightQueens.java, to display the intermediate results of the search. As shown in Figure 30.33, the current row being searched is highlighted. Every one second, a new state of the chess board is displayed

(Eight Queens animation) Modify Listing 22.11, EightQueens.java, to display the intermediate results of the search. As shown in Figure 30.33, the current row being searched is highlighted. Every one second, a new state of the chess board is displayed.

FIGURE 30.33 The intermediate search steps are displayed in the animation for the Eight Queens problem.