package edu.princeton.cs.algs4.ch55; import edu.princeton.cs.introcs.*; /************************************************************************* * Compilation: javac PictureDump.java * Execution: java PictureDump width height < file * Dependencies: BinaryStdIn.java Picture.java * Data file: http://introcs.cs.princeton.edu/stdlib/abra.txt * * Reads in a binary file and writes out the bits as w-by-h picture, * with the 1 bits in black and the 0 bits in white. * * % more abra.txt * ABRACADABRA! * * % java PictureDump 16 6 < abra.txt * *************************************************************************/ import java.awt.Color; public class PictureDump { public static void main(String[] args) { int width = Integer.parseInt(args[0]); int height = Integer.parseInt(args[1]); Picture pic = new Picture(width, height); int count = 0; for (int i = 0; i < height; i++) { for (int j = 0; j < width; j++) { pic.set(j, i, Color.RED); if (!BinaryStdIn.isEmpty()) { count++; boolean bit = BinaryStdIn.readBoolean(); if (bit) pic.set(j, i, Color.BLACK); else pic.set(j, i, Color.WHITE); } } } pic.show(); StdOut.println(count + " bits"); } } /************************************************************************* * Copyright 2002-2012, Robert Sedgewick and Kevin Wayne. * * This file is part of algs4-package.jar, which accompanies the textbook * * Algorithms, 4th edition by Robert Sedgewick and Kevin Wayne, * Addison-Wesley Professional, 2011, ISBN 0-321-57351-X. * http://algs4.cs.princeton.edu * * * algs4-package.jar is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * algs4-package.jar is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with algs4-package.jar. If not, see http://www.gnu.org/licenses. *************************************************************************/