//------------
// Introduction to Programming Using Java: An Object-Oriented Approach
//	Arnow/Weiss
//------------
import java.io.*;
import java.util.*;

class LifeDisplay {
    public LifeDisplay() {
        keybd = new BufferedReader(new 
                            InputStreamReader(System.in));
    }
    public void displayWorld(boolean[][] world) throws 
                                                Exception {
        pause();
        drawLine(world.length+2);
           for (int i = 0; i < world.length; i++) {
               System.out.print("|");
               for (int j = 0; j < world[i].length; j++)
                   drawSquare(world[i][j]);
               System.out.println("|");
           }
           drawLine(world.length+2);
    }
    private void drawLine(int n) {
        for (int i = 0; i < n; i++)
           System.out.print("-");
        System.out.println();
    }
    private void drawSquare(boolean s) {
        if (s)
           System.out.print("*");
        else
           System.out.print(" ");
    }
    private void pause() throws Exception {
        System.out.print("Hit return to continue ... ");
        System.out.flush();
        keybd.readLine();
    }
    BufferedReader keybd;

}