DrawShapes.java

public class DrawShapes {
   private enum Shape {
      _1("100000001100000001100000001100000001100000001100000001111111111", 9, 7, 'X'),
      _2("1000001010001000101000001000001010001000101000001", 7, 7, 'X'),
      _3("100000001101000101100101001100010001100101001101000101100000001", 9, 7, 'X'),
      _4("1000000000000101000000000010001000000001000001000000100000001000010000000001001111111111111", 13, 7, 'X'),
      _5("0000000000011000000000111100000001111110000011111111000111111111101111111111111111111111111", 13, 7, 'X'),
      _6("100000000001111000000100111110010000111111100000111111111000111111111100111111111111", 12, 7, 'X'),
      _7("1000101010001000101010001", 5, 5, 'x'),
      UNKNOWN("1010101010101010101010101010101010101010101010101", 7, 7, '?');

      private String bitSequence;
      private int width, height;
      private char ch;
      private String filler;

      Shape(String bitSequence, int width, int height, char ch) {
         this.bitSequence = bitSequence;
         this.width = width;
         this.height = height;
         this.ch = ch;

         StringBuilder fill = new StringBuilder();
         while (fill.length() < width)
            fill.append(' ');
         this.filler =  fill.toString();
      }

      public static Shape getEnum(String value) {
         for (Shape shape : values()) {
            if (("_" + value).equals(shape.name())) {
               return shape;
            }
         }

         return UNKNOWN;
      }
   }

   public DrawShapes() {
      printShapes("12345678", "  ");
   }

   public void printShapes(String shapeCodes, String spacing) {
      Shape shape;
      int rowIndex, colIndex;
      int maxHeight = 0;

      // Find max height for all shapes.
      for (Character c : shapeCodes.toCharArray()) {
         shape = Shape.getEnum(c.toString());
         if (shape.height > maxHeight)
            maxHeight = shape.height;
      }

      // Print out every shape on a new line using column-major order.
      for (int row = 0; row < maxHeight; row++) {
         for (Character ph : shapeCodes.toCharArray()) {
            shape = Shape.getEnum(ph.toString());
            rowIndex = row - (maxHeight - shape.height);
            if (rowIndex < 0) {
               System.out.print(shape.filler);
            } else {
               colIndex = rowIndex * shape.width;
               String seq = shape.bitSequence.substring(
                     colIndex, colIndex + shape.width);
               for (Character ch : seq.toCharArray()) {
                  System.out.printf("%c", ch == 48 ? 32 : shape.ch);
               }
            }
            System.out.print(spacing);
         }
         System.out.println();
      }
   }

   public static void main(String[] args) {
      new DrawShapes();
   }
}

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// X       X    X X    X  X X  X  X   X                 XXXXXX  XXXXX  X      x   x  ? ? ? ?
// X       X     X     X   X   X  X     X             XXXXXXXX  XXXXXXX        x x    ? ? ?
// X       X    X X    X  X X  X  X       X         XXXXXXXXXX  XXXXXXXXX       x    ? ? ? ?
// X       X   X   X   X X   X X  X         X     XXXXXXXXXXXX  XXXXXXXXXX     x x    ? ? ?
// XXXXXXXXX  X     X  X       X  XXXXXXXXXXXXX  XXXXXXXXXXXXX  XXXXXXXXXXXX  x   x  ? ? ? ?