Thread: java Method '…' is too complex to analyze by data flow algorithm

I am building a game of tic tac toe and I am getting this warning on my method.
The code is kinda complex and repeating an if statement, I do not know if there is a way around this warning. any kind of help would be appreciated.



public void checkWin() {

if ((board[0] == board[1]) && (board[1] == board[2]) && board[2] != 0) {
win(0);
}
if ((board[3] == board[4]) && (board[4] == board[5]) && board[5] != 0) {
win(5);
}
if ((board[6] == board[7]) && (board[7] == board[8]) && board[8] != 0) {
win(8);
}

//----------------------------------------------------------------------

if ((board[0] == board[3]) && (board[3] == board[6]) && board[6] != 0) {
win(6);
}
if ((board[1] == board[4]) && (board[4] == board[7]) && board[7] != 0) {
win(7);
}
if ((board[2] == board[5]) && (board[5] == board[8]) && board[8] != 0) {
win(8);
}

//---------------------------------------------------------------------

if ((board[0] == board[4]) && (board[4] == board[8]) && board[8] != 0) {
win(8);
}
if ((board[6] == board[4]) && (board[4] == board[2]) && board[2] != 0) {
win(2);
}

for (int i = 0; i < board.length; i++) {
if (board[i] == 0) return;
}

if (!won) draw();

}

Hello Jim,

I am really sorry about that, I am kinda new here.

The warring is:

Method 'checkWin' is too complex to analyze by data flow algorithm.


The method is based on the game Tic Tac Toe, the game its working fine, its just that I am not supposed to have warnings like this in my code.
I will place the code of the method from where the warning is below again. Hope it is better this time.

Thanks in advanced.

*****************************************

 
 
public void checkWin() {
 
 
 
 
        if ((board[0] == board[1]) && (board[1] == board[2]) && board[2] != 0) {
            win(0);
        }
        if ((board[3] == board[4]) && (board[4] == board[5]) && board[5] != 0) {
            win(5);
        }
        if ((board[6] == board[7]) && (board[7] == board[8]) && board[8] != 0) {
            win(8);
        }
 
        //----------------------------------------------------------------------
 
        if ((board[0] == board[3]) && (board[3] == board[6]) && board[6] != 0) {
            win(6);
        }
        if ((board[1] == board[4]) && (board[4] == board[7]) && board[7] != 0) {
            win(7);
        }
        if ((board[2] == board[5]) && (board[5] == board[8]) && board[8] != 0) {
            win(8);
        }
 
        //---------------------------------------------------------------------
 
        if ((board[0] == board[4]) && (board[4] == board[8]) && board[8] != 0) {
            win(8);
        }
        if ((board[6] == board[4]) && (board[4] == board[2]) && board[2] != 0) {
            win(2);
        }
 
        for (int i = 0; i < board.length; i++) {
            if (board[i] == 0) return;
        }
 
        if (!won) draw();
 
    }

I switched the method from public to protected and somehow the warning disappeared, doesn't really make sense but its gone so I guess that's fine.
I am using IntelliJ IDE.

Thanks a lot for your help.