划线的地方怎么解决啊？有没有大佬知道如何修改

package com.example.login;

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.CompoundButton.OnCheckedChangeListener;

import android.widget.EditText;

import android.widget.Toast;

public class LoginActivity extends Activity {

private EditText userName, password;

private CheckBox rem_pw;

private Button btn_login;

private String userNameValue,passwordValue;

private SharedPreferences sp;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//去除标题

this.requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_login);

//获得实例对象

sp = this.getSharedPreferences("userInfo", Context.MODE_PRIVATE);

userName = (EditText)findViewById(R.id.et_zh);

password = (EditText)findViewById(R.id.et_psd);

rem_pw = (CheckBox)findViewById(R.id.cb_psd);

btn_login = (Button)findViewById(R.id.btn_login);

//判断记住密码多选框的状态

if(sp.getBoolean("ISCHECK", false))

{

//设置默认是记录密码状态

rem_pw.setChecked(true);

userName.setText(sp.getString("USER_NAME", ""));

password.setText(sp.getString("PASSWORD", ""));

}

// 登录监听事件 现在默认为用户名为：fang 密码：123

btn_login.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

userNameValue = userName.getText().toString();

passwordValue = password.getText().toString();

if(userNameValue.equals("fang")&&passwordValue.equals("123")){

//跳转界面

Bundle bundle = new Bundle();

bundle.putString("name", userNameValue);

bundle.putString("psd", passwordValue);

Intent intent = new Intent(WelcomeActivity.this,WelcomeActivity.class);

intent.putExtras(bundle);

startActivity(intent);

//finish();

//登录成功和记住密码框为选中状态才保存用户信息

if(rem_pw.isChecked())

{

//记住用户名、密码、

Editor editor = sp.edit();

editor.putString("USER_NAME", userNameValue);

editor.putString("PASSWORD",passwordValue);

editor.commit();

}

}else{

Toast.makeText(LoginActivity.this,"用户名或密码错误，请重新登录", Toast.LENGTH_LONG).show();

}

}

});

//监听记住密码多选框按钮事件

rem_pw.setOnCheckedChangeListener(new OnCheckedChangeListener() {

public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {

if (rem_pw.isChecked()) {

System.out.println("记住密码已选中");

sp.edit().putBoolean("ISCHECK", true).commit();

}else {

System.out.println("记住密码没有选中");

sp.edit().putBoolean("ISCHECK", false).commit();

}

}

});

}

}