converting java method to vhdl

What exactly is the problem, other than your VHDL being completly useless for hardware?

public class Sudoku {
        static boolean empty = false;
 //static int  fullSet;
 static int  board;
 static int  allowedSets;
        static boolean  sudoku_array = new boolean ;
 public static void main(String  args)
 {
  initializeBoard();
                readGame();
  boolean solved = solveGame();
  if(!solved)
                    printSets();
  printGame();
                
                
 }
        
 /**
  * Create board array and create and initialize sets for the
  * board squares.
 **/
 public static void initializeBoard()
 {
                int counter = 0;
                board = new int;
                allowedSets = new int ;
  // Since no moves have been made, any number can go anywhere.
  // Start the sets out with all possibilities.
  for(int i = 0; i < 9; i++){
                    for( int j = 0; j < 9; j++){
                        allowedSets = counter;
                        counter = counter + 9;
                    }
                }
                for (int i = 0; i < sudoku_array.length; i++){
                        sudoku_array = true;
                    }
 }
        /**
  * Output the sets to the command line.
  * Used when the solver fails to complete a game.
 **/
 public static void printSets()
 {
            for(int i = 0; i < 9; i++){
                    for( int j = 0; j < 9; j++){
                        for (int k = allowedSets; k < allowedSets + 9; k++ ) {
                            System.out.print("{");
                            if(sudoku_array)
    System.out.print((k)+", ");
                            System.out.println("}");
                        }
                    }
            }
        }
    /**
  * Place val into the (x,y) position on the board and update sets
  * to remove val as a possibility in row x, column y, and the box
  * containing (x,y).
 **/
 public static void move(int x, int y, int val)
 {
  board = val;
  if(val == 0) // handle 0 moves for readGame()
   return;
  // clear everything out of set (x,y)
                for (int k = allowedSets; k < allowedSets + 9; k++ ) {
   sudoku_array = sudoku_array && empty;
                }
                for (int i = 0; i < 9; i++){
                    
                    sudoku_array+(val-1)] = false;
                    sudoku_array+(val-1)] = false;
                }
                
  int boxX = x/3;
  int boxY = y/3;
  // clear the box containing (x,y)
  for(int i = 0; i < 3; i++)
   for(int j = 0; j < 3; j++)
                            sudoku_array + (val-1)] = false;
 }
         /**
  * Read in a game from the command line and put moves on the board
  *
 **/
 public static void readGame()
 {
  try
  {
   InputStreamReader isr = new InputStreamReader(System.in);
   BufferedReader stdin = new BufferedReader(isr);
   String line = "";
   for(int i = 0; i < 9; i++)
   {
    line = stdin.readLine();
    for(int j = 0; j < 9; j++)
     move(i,j,line.charAt(j)-'0');
   }
  }
  catch(java.io.IOException e)
  {
   System.out.println(e);
  }
 }
        /**
  * Get the first element of a set.
  * If the set has one element, return that element.
 **/
 public static int getElement(int index)
 {
  for(int i = index; i < index + 9; i++)
   if(sudoku_array)
    return i;
  System.out.println("uh oh");
  return 0;
 }
        public static boolean isEmpty(int index) {
  boolean empty = true;
  for(int i = index; i < index + 9; i++)
   empty = empty && !sudoku_array;
  return empty;
 }
        public static int size(int index) {
  int size = 0;
  for(int i = index; i < index + 9; i++)
   if(sudoku_array)
    size++;
  return size;
 }
       /**
  * Search the board for a space with only one possibility.  If found,
  * place that move on the board and update sets.  Continue until
  * either no move is made, or there are no possiblities in any squares.
 **/
 public static boolean solveGame()
 {
  boolean solved = false;
  boolean moved = false;
  int moves = 0;
  while(!solved)
  {
   solved = true;
   moved = false;
   for(int i = 0; i < 9; i++)
   {
    for(int j = 0; j < 9; j++)
    {
     if(size(allowedSets) == 1)
     {
      move(i,j,getElement(allowedSets));
      moved = true;
      moves++;
     }
     else if(!isEmpty(allowedSets))
      solved = false;
    }
   }
   if(!moved) // Give up if no moves were found
    break;
  }
  System.out.println("moves made: " + moves);
  return solved;
 }
 /**
  * Output the current board position.
  *
 **/
 public static void printGame()
 {
  System.out.println();
  for(int i = 0; i < 9; i++)
  {
   for(int j = 0; j < 9; j++)
    System.out.print(board);
   System.out.println();
  }
 }
}

What is the end goal? a straight conversion will not work in an FPGA, because VHDL is NOT software. it is a hardware description language.

Hi Guys,

Java and vhdl are very different things. One is a hardware description language, the other is a software language. What is the reason for wanting to convert between them?