我可以更改final int的值吗？

我是Android的新手,我正在尝试创建一个游戏.这是一个非常简单的猜数字游戏.如果用户猜对了,我想改变正确答案的值.我不确定该怎么做.他是我的创建代码:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button subm = (Button) findViewById(R.id.button1);
    final TextView tv1 =(TextView) findViewById(R.id.textView1);
    final EditText userG=(EditText)findViewById(R.id.editText1);
    Random rand=new Random();
    final int correctAnswer=rand.nextInt(100)+1;
    subm.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            int userNum=Integer.parseInt(userG.getText().toString());
            if(userNum>100 || userNum<0){
                tv1.setText("Enter a number between 1 and 100");
            }
            else{
            if(userNum==correctAnswer){

                tv1.setText("YEAH! You got it right");
            }
            else if(userNum>correctAnswer){

                tv1.setText("Sorry,Your guess is too high");
            }
            else if(userNum

如何更改correctAnswer？我被迫称之为最终,不能改变价值.