//
// COMP102
// Example 3: Constrained Multi-dimensional Array
//            Storing and Printing Giant Digits
//
// Paul E. Dunne 12/10/1999
//
public class GIANT_TERNARY
  {
  //
  // Fields
  //
  protected char fg='*';     // Default Foreground Symbol
  protected char bg=' ';     // Default Background Symbol
  protected char[][][] AllDigits= new char[3][9][9];   // Representation
  //
  // Single Constructor
  //
  public GIANT_TERNARY()
     {
     // 
     // This probably looks a bit meaningless, but is easiest
     // mechanism for instantiating a default setting. 
     //
     // Using fg='*' and bg=' ', the appearance encoded
     // is:
     // 
     //    ***       ***      *****   
     //   *****     * **     **   **  
     //  **   **   *  **     **   **  
     //  **   **      **     **   **  
     //  **   **      **         **   
     //  **   **      **        **    
     //  **   **      **       **     
     //   *****    *******    ******  
     //    ***     *******   *******  
     //  
     //
     // 
     // N.B. Layout convention which allows easy checking
     // that all elements of the 3-dimensional array have
     // been accounted for.
     //
     final char[][][] TempDigits = { 
                                     { {bg,bg,bg,fg,fg,fg,bg,bg,bg},
                                       {bg,bg,fg,fg,fg,fg,fg,bg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,bg,fg,fg,fg,fg,fg,bg,bg},
                                       {bg,bg,bg,fg,fg,fg,bg,bg,bg} 
                                     },
                                     { {bg,bg,bg,fg,fg,fg,bg,bg,bg},
                                       {bg,bg,fg,bg,fg,fg,bg,bg,bg},
                                       {bg,fg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,bg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,bg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,bg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,bg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,fg,fg,fg,fg,fg,fg,fg,bg},
                                       {bg,fg,fg,fg,fg,fg,fg,fg,bg}
                                     },
                                     { {bg,bg,fg,fg,fg,fg,fg,bg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,fg,fg,bg,bg,bg,fg,fg,bg},
                                       {bg,bg,bg,bg,bg,fg,fg,bg,bg},
                                       {bg,bg,bg,bg,fg,fg,bg,bg,bg},
                                       {bg,bg,bg,fg,fg,bg,bg,bg,bg},
                                       {bg,bg,fg,fg,fg,fg,fg,fg,bg},
                                       {bg,fg,fg,fg,fg,fg,fg,fg,bg}
                                     }
                                   };
     // Now instantiate the appropriate field for the class; 
     AllDigits = TempDigits;
     }
  //**********************************************************
  // Instance Methods                                        *
  //**********************************************************
  // 
  // Change the representation used by default, to employ
  // the specified foreground symbol (fore) and background
  // symbol (back). 
  //
  public void ChangeOver (char fore, char back)
    {
    for (int i=0; i<3; i++)
      for (int j=0; j<9; j++)
        for (int k=0; k<9; k++)
          if (AllDigits[i][j][k]==fg)
            AllDigits[i][j][k]=fore;
          else
            AllDigits[i][j][k]=back;
    fg=fore; bg=back;
    }  // ChangeOver
  //
  // Given a digit (0,1, or 2), output the
  // specified row (in row_value) of its
  // representation as a String, without a new line being thrown
  // after printing.
  //
  public void PrintRow( int row_value, int ternary_digit )
    {
    System.out.print(String.valueOf(AllDigits[ternary_digit][row_value]));
    } // PrintRow
  //
  // Print out the representation of a ternary digit.
  //
  public void PrintAll (int ternary_digit )
    {
    for (int i=0; i<9; i++)
       {
       PrintRow(i,ternary_digit); System.out.println();
       };
    }  // PrintAll
  }    // GIANT_TERNARY