java - 2d arrays and tic tac toe rows and columns method -

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hello trying make tic tac toe program, , having trouble having turns ending, , winner being declared, please take @ method , see might problem. far diagonals work, don't think rows, , columns thanks.

public string checkwin()  {     string results = "";     (int r =0; r <3;r++)     {         if(board[0][0]== "1" &(board[1][1]== "1") &(board[2][2]== "1"))         {             results = "player 1 wins";         }         else if(board[0][0]== "2" &(board[1][1]== "2" )&(board[2][2]== "2"))         {             results = "player 2 wins";         }         else if(board[0][2]== "1" &(board[1][1]== "1") &(board[2][0]== "1"))         {             results = "player 1 wins";         }            else if(board[0][2]== "2" &(board[1][1]== "2") &(board[2][0]== "2"))         {             results = "player 2 wins";         }     // else if(board[0][0] == "1" & board [0][1] == "1" & board [0][2] =="1"     // {     //  results = "player 1 wins"     //  }         else if (board [r][0] == "1"& board [r][1]=="1" & board[r][2]=="1")         {             results = "player 1 wins";         }         else if(board [r][0] == "2"& board [r][1]=="1" & board[r][2]=="2")         {             results = "player 2 wins";         }         else if (board [0][r] == "1"& board [1][r]=="1" & board[2][r]=="1")         {             results = "player 1 wins";         }         else if (board [0][r] == "2"& board [1][r]=="2" & board[2][r]=="2")         {             results = "player 2 wins";         }         else         {             results = "tie";          }         return results;     } }


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