Can my AI scan through all choices without short circuiting?

So I have been trying to make my AI's "choices" scan through all possible actions instead of after the first if give up and go to player 1's turn. Can anybody help with this problem? Also feel free to say my code is totally wrong, ill understand.

        //CPU TURN SYSTEM STARTS HERE!!!!
        if(turn == 2||turn == 4|| turn == 6||turn == 8){
            if(grid[0] != "X")
            {
            grid[0] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[1] != "X")
            {
            grid[1] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[2] != "X")
            {
            grid[2] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[3] != "X")
            {
            grid[3] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[4] != "X")
            {
            grid[4] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[5] != "X")
            {
            grid[5] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[6] != "X")
            {
            grid[6] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
            if(grid[7] != "X")
            {
            grid[7] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }       
            if(grid[8] != "X")
            {
            grid[8] = "O";
            System.out.println(grid[0]+" " +grid[1]+" " +grid[2]);
            System.out.println(grid[3]+" " +grid[4]+" " +grid[5]);
            System.out.println(grid[6]+" " +grid[7]+" " +grid[8]);
            turn++;
            }
    }}