java.lang.nullpointerexception at java.lang.reflect.method.invoke 등등

Question

package com.test;

import android.app.*;
import android.content.Intent;
import android.os.Bundle;
import android.view.*;
import android.widget.*;

import com.example.helloworld.R;

public class Main_Activity extends Activity{
 protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  Button bt = (Button)findViewById(R.id.button1);
  bt.setOnClickListener(listener);
 }
 Button.OnClickListener listener = new Button.OnClickListener(){
  public void onClick(View v){
   Toast.makeText(getApplicationContext(), "실행하겠습니다.", Toast.LENGTH_LONG).show();
   EditText result1 = (EditText)findViewById(R.id.editText1);
   EditText result2 = (EditText)findViewById(R.id.editText2);
   int i1 = Integer.parseInt(result2.getText().toString());
   if(result1.getText().toString().length()<=0)Toast.makeText(getApplicationContext(), "검색 단어들을 입력해주세요.", Toast.LENGTH_LONG).show();
   if(result2.getText().toString().length()<=0)Toast.makeText(getApplicationContext(), "시간을 입력해주세요.", Toast.LENGTH_LONG).show();
   String[] a1 = result1.getText().toString().split(",");
   startService(new Intent("macro.start"));
   Intent intent = new Intent(Intent.ACTION_MAIN);
   intent.addCategory(intent.CATEGORY_HOME);
   intent.setFlags(intent.FLAG_ACTIVITY_NEW_TASK);
   startActivity(intent);
   intent = getPackageManager().getLaunchIntentForPackage("인터넷");
   startActivity(intent);
  }
 };
}

생초보인데요... 값 2개를 입력받고 적용 누르면 바탕화면에 나가져서 인터넷 실행하려고하는데요. 팅기네요 적용누르면 도와주세요 ㅜㅜ