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  1. public class Main {
  2.     public static void main(String[] args) {
  3.         VirtualScreen screen = new VirtualScreen(40, 10);
  4.  
  5.         screen.box('+', 3, 0, 20, 9);
  6.  
  7.         screen.line('#', 5, 2, 3, 9);
  8.         screen.line('#', 7, 2, 10, 9);
  9.  
  10.         screen.line('#', 9, 1, 9, 3);
  11.         screen.line('#', 11, 1, 11, 3);
  12.  
  13.         screen.line('#', 14, 2, 19, 2);
  14.         screen.line('#', 18, 2, 19, 9);
  15.         screen.line('#', 19, 8, 17, 8);
  16.  
  17.         screen.line('#', 16, 1, 13, 9);
  18.  
  19.         screen.circle('*', 28, 5, 4);
  20.         screen.circle('*', 28, 5, 2);
  21.  
  22.         screen.fillBox('1', 20, 2, 10, 8);
  23.  
  24.         screen.print();
  25.     }
  26. }
  27.  
  28. class VirtualScreen {
  29.     protected int width;
  30.     protected int height;
  31.     protected String[] lines;
  32.  
  33.     VirtualScreen() {
  34.         this(80, 25);
  35.     }
  36.     VirtualScreen(int width, int height) {
  37.         this(' ', width, height);
  38.     }
  39.     VirtualScreen(char ch, int width, int height) {
  40.         reset(ch, width, height);
  41.     }
  42.  
  43.     public void reset(char ch, int width, int height) {
  44.         this.width = width;
  45.         this.height = height;
  46.         this.lines = new String[height];
  47.         for (int i = 0; i < height; ++i) {
  48.             lines[i] = "";
  49.             for (int j = 0; j < width; ++j) {
  50.                 lines[i] = lines[i] + ch;
  51.             }
  52.         }
  53.     }
  54.  
  55.     public void print() {
  56.         for (int y = 0; y < height; ++y) {
  57.             System.out.println(lines[y]);
  58.         }
  59.     }
  60.  
  61.     public void setPixel(char ch, int x, int y) {
  62.         if (x < 0 || width <= x)
  63.             return;
  64.         if (y < 0 || height <= y)
  65.             return;
  66.         String str = lines[y];
  67.         lines[y] = str.substring(0, x) + ch + str.substring(x + 1);
  68.     }
  69.  
  70.     public void fillBox(char ch, int left, int top, int right, int bottom) {
  71.         for (int y = top; y <= bottom; ++y) {
  72.             for (int x = left; x <= right; ++x) {
  73.                 setPixel(ch, x, y);
  74.             }
  75.         }
  76.     }
  77.  
  78.     public void line(char ch, int x0, int y0, int x1, int y1) {
  79.         int dx = x1 - x0, dy = y1 - y0;
  80.         if (Math.abs(dx) <= Math.abs(dy)) {
  81.             if (dy < 0) {
  82.                 for (int y = y1; y < y0; ++y) {
  83.                     int x = x1 + (y - y1) * dx / dy;
  84.                     setPixel(ch, x, y);
  85.                 }
  86.             } else if (dy > 0) {
  87.                 for (int y = y0; y < y1; ++y) {
  88.                     int x = x0 + (y - y0) * dx / dy;
  89.                     setPixel(ch, x, y);
  90.                 }
  91.             }
  92.         } else {
  93.             if (dx < 0) {
  94.                 for (int x = x1; x < x0; ++x) {
  95.                     int y = y1 + (x - x1) * dy / dx;
  96.                     setPixel(ch, x, y);
  97.                 }
  98.             } else if (dx > 0) {
  99.                 for (int x = x0; x < x1; ++x) {
  100.                     int y = y0 + (x - x0) * dy / dx;
  101.                     setPixel(ch, x, y);
  102.                 }
  103.             }
  104.         }
  105.     }
  106.  
  107.     public void box(char ch, int x0, int y0, int x1, int y1) {
  108.         line(ch, x0, y0, x1, y0);
  109.         line(ch, x1, y0, x1, y1);
  110.         line(ch, x1, y1, x0, y1);
  111.         line(ch, x0, y1, x0, y0);
  112.     }
  113.  
  114.     public void circle(char ch, int x, int y, double r) {
  115.         if (r == 0) {
  116.             return;
  117.         }
  118.         for(double t = 0; t < 2 * Math.PI; t += 1 / (2 * Math.PI * r)) {
  119.             double px = x + r * Math.cos(t);
  120.             double py = y + r * Math.sin(t);
  121.             setPixel(ch, round(px), round(py));
  122.         }
  123.     }
  124.  
  125.     protected int round(double d) {
  126.         return (int)Math.round(d);
  127.     }
  128. }
Success #stdin #stdout 0.04s 4386816KB
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stdin
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Standard input is empty
stdout
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   ++++++++++++++++++                   
   +     # #    #   +     *****         
   + # # # #  ##### +    **   **        
   + # #        # # +   ** *** **       
   + # #       #  # +   * ** ** *       
   + #  #      #  # +   * *   * *       
   +#   #      #  # +   * ** ** *       
   +#    #    #   # +   ** *** **       
   +#    #    #  ## +    **   **        
   +++++++++++++++++      *****
https://ideone.com/wSid1J
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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