想在代码中使用字母而不是整数？

Question

我有一个益智游戏的代码，但我想使用整数的字母表。我不想在我的游戏中使用数字而是字母。每当我将按钮中的文本更改为字母时，它会因代码而中断。任何人都可以告诉我如何使下面的代码与字母表一起使用。 游戏的java代码是;

@ElementCollection

，而xml文件是;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AbsoluteLayout;
import android.widget.Button;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Collections;


public class Level1Activity extends Activity {

    private TextView moveCounter;
    private TextView feedbackText;
    private Button[] buttons;
    private Boolean bad_move=false;
    private static final Integer[] goal = new Integer[] {0,1,2,3,4,5,6,7,8};

    private ArrayList<Integer> cells = new ArrayList<Integer>();



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.level1_activty);
        buttons=findButtons();

        for(int i=0;i<9;i++)
        {
            this.cells.add(i);
        }
        Collections.shuffle(this.cells); //random cells array

        fill_grid();


        moveCounter = (TextView) findViewById(R.id.MoveCounter);
        feedbackText = (TextView) findViewById(R.id.FeedbackText);

        for (int i = 1; i < 9; i++) {
            buttons[i].setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    makeMove((Button) v);
                }
            });
        }


        moveCounter.setText("0");
        feedbackText.setText(R.string.game_feedback_text);

    }
    public Button[] findButtons() {
        Button[] b = new Button[9];

        b[0] = (Button) findViewById(R.id.Button00);
        b[1] = (Button) findViewById(R.id.Button01);
        b[2] = (Button) findViewById(R.id.Button02);
        b[3] = (Button) findViewById(R.id.Button03);
        b[4] = (Button) findViewById(R.id.Button04);
        b[5] = (Button) findViewById(R.id.Button05);
        b[6] = (Button) findViewById(R.id.Button06);
        b[7] = (Button) findViewById(R.id.Button07);
        b[8] = (Button) findViewById(R.id.Button08);
        return b;
    }

    public void makeMove(final Button b) {
        bad_move=true;
        int b_text,b_pos,zuk_pos;
        b_text=Integer.parseInt((String) b.getText());
        b_pos=find_pos(b_text);
        zuk_pos=find_pos(0);
        switch(zuk_pos)
        {
            case(0):
                if(b_pos==1||b_pos==3)
                    bad_move=false;
                break;
            case(1):
                if(b_pos==0||b_pos==2||b_pos==4)
                    bad_move=false;
                break;
            case(2):
                if(b_pos==1||b_pos==5)
                    bad_move=false;
                break;
            case(3):
                if(b_pos==0||b_pos==4||b_pos==6)
                    bad_move=false;
                break;
            case(4):
                if(b_pos==1||b_pos==3||b_pos==5||b_pos==7)
                    bad_move=false;
                break;
            case(5):
                if(b_pos==2||b_pos==4||b_pos==8)
                    bad_move=false;
                break;
            case(6):
                if(b_pos==3||b_pos==7)
                    bad_move=false;
                break;
            case(7):
                if(b_pos==4||b_pos==6||b_pos==8)
                    bad_move=false;
                break;
            case(8):
                if(b_pos==5||b_pos==7)
                    bad_move=false;
                break;
        }

        if(bad_move==true)
        {
            feedbackText.setText("Move Not Allowed");
            return;
        }
        feedbackText.setText("Move OK");
        cells.remove(b_pos);
        cells.add(b_pos, 0);
        cells.remove(zuk_pos);
        cells.add(zuk_pos,b_text);


        fill_grid();
        moveCounter.setText(Integer.toString(Integer.parseInt((String) moveCounter.getText())+1));

        for(int i=0;i<9;i++)
        {
            if(cells.get(i)!=goal[i])
            {
                return;
            }
        }
        feedbackText.setText("we have a winner");
    }

    public void fill_grid()
    {
        for(int i=0;i<9;i++)
        {
            int text=cells.get(i);
            AbsoluteLayout.LayoutParams absParams =
                    (AbsoluteLayout.LayoutParams)buttons[text].getLayoutParams();
            switch(i)
            {case(0):

                absParams.x = 5;
                absParams.y = 5;
                buttons[text].setLayoutParams(absParams);
                break;
                case(1):

                    absParams.x = 110;
                    absParams.y = 5;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(2):

                    absParams.x = 215;
                    absParams.y = 5;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(3):

                    absParams.x = 5;
                    absParams.y = 110;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(4):

                    absParams.x =110;
                    absParams.y =110;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(5):

                    absParams.x = 215;
                    absParams.y =110;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(6):

                    absParams.x = 5;
                    absParams.y = 215;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(7):

                    absParams.x = 110;
                    absParams.y = 215;
                    buttons[text].setLayoutParams(absParams);
                    break;
                case(8):

                    absParams.x = 215;
                    absParams.y = 215;
                    buttons[text].setLayoutParams(absParams);
                    break;


            }


        }

    }

    public int find_pos(int element)
    {
        int i=0;
        for(i=0;i<9;i++)
        {
            if(cells.get(i)==element)
            {
                break;
            }
        }
        return i;
    }
}