Android accepts emails

package com.example.atest21;import java.io.IOException;import java.util.Properties;import javax.mail.Folder;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Session;import javax.mail.search.AndTerm;import javax.mail.search.FromStringTerm;import javax.mail.search.SearchTerm;import javax.mail.search.SubjectTerm;import com.sun.mail.imap.IMAPFolder;import com.sun.mail.imap.IMAPStore;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.widget.Button;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);final Button bn1 =(Button)findViewById(R.id.button1);final Button bn2 =(Button)findViewById(R.id.button2);bn1.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubRecevieMail rm = new RecevieMail("username", "password");}});bn2.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubSystem.exit(0);}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}class RecevieMail{String strMsg,UserName,passwd;String imapServer = "imap.163.com";private RecevieMail() {super();// TODO Auto-generated constructor stub}public RecevieMail(String userName, String passwd) {super();//this.strMsg = strMsg;UserName = userName;this.passwd = passwd;Properties prop = System.getProperties();prop.put("mail.imap.host", imapServer);prop.put("mail.imap.auth.plain.disable", "true");Session mailsession = Session.getInstance(prop, null);mailsession.setDebug(false);IMAPFolder folder = null;IMAPStore store = null;int total = 0;try{store = (IMAPStore)mailsession.getStore("imap");store.connect(imapServer, userName, passwd);folder = (IMAPFolder)store.getFolder("INBOX");folder.open(Folder.READ_ONLY);total = folder.getMessageCount();System.out.println(total);SearchTerm st = new AndTerm(new FromStringTerm("abc@abc.com"),  new SubjectTerm("aaaaa"));Message[] msgs  = folder.search(st);int mailcount = msgs.length;System.out.println(mailcount);for(int i1 = 0;i1 <msgs.length;i1++){//try {//msgs[i1].writeTo(System.out);//} catch (IOException e) {//// TODO Auto-generated catch block//e.printStackTrace();//}//String strTmp1 = msgs[i1].getContentType();try {String strTmp1 = (String)msgs[i1].getContent();System.out.println(strTmp1);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}//Message[] msgs = folder.getMessages();//System.out.println("\tZongYouJianShu: "+msgs.length);//System.out.println("\tWeiDuYouJianShu: "+folder.getUnreadMessageCount());//System.out.println("\tXinYouJianShu: "+folder.getNewMessageCount());//for(int i1 = 0;i1<msgs.length;i1++){//String subject = msgs[i1].getSubject();//String from = (msgs[i1].getFrom()[0]).toString();//if(subject != null)//{////System.out.println(subject);//if(subject .equals("aaaaa")){//System.out.println("OK");//try {//msgs[i1].writeTo(System.out);//} catch (IOException e) {//// TODO Auto-generated catch block//e.printStackTrace();//}////try {////String strTmp1 =msgs[i1].getContent().toString();////System.out.println(strTmp1);////} catch (IOException e) {////// TODO Auto-generated catch block////e.printStackTrace();////}//}//}//if(from!=null)//System.out.println(from);//////}////}catch(MessagingException ex){System.out.println(ex.getMessage());}}public String getStrMsg() {return strMsg;}public void setStrMsg(String strMsg) {this.strMsg = strMsg;}}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_below="@+id/textView1"        android:layout_marginTop="28dp"        android:text="Button" />    <Button        android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/button1"        android:layout_below="@+id/button1"        android:layout_marginTop="26dp"        android:text="Button" />    <TextView        android:id="@+id/textView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/button2"        android:layout_below="@+id/button2"        android:layout_marginTop="22dp"        android:text="Hello 2" /></RelativeLayout>