diff --git a/app/src/main/java/edu/hzuapps/androidworks/MainActivity.java b/app/src/main/java/edu/hzuapps/androidworks/MainActivity.java
deleted file mode 100644
index 0b545a4c..00000000
--- a/app/src/main/java/edu/hzuapps/androidworks/MainActivity.java
+++ /dev/null
@@ -1,128 +0,0 @@
-package edu.hzuapps.androidworks;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.v7.app.ActionBarActivity;
-import android.util.Log;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.Button;
-import android.widget.RelativeLayout;
-
-import edu.hzuapps.androidworks.examples.AbsoluteLayoutActivity;
-import edu.hzuapps.androidworks.examples.ActivityBasicActivity;
-import edu.hzuapps.androidworks.examples.BroadcastReceiverActivity;
-import edu.hzuapps.androidworks.examples.ContentProviderActivity;
-import edu.hzuapps.androidworks.examples.FileSelectActivity;
-import edu.hzuapps.androidworks.examples.FileShareActivity;
-import edu.hzuapps.androidworks.examples.FileStorageActivity;
-import edu.hzuapps.androidworks.examples.FragmentDemoActivity;
-import edu.hzuapps.androidworks.examples.FrameLayoutActivity;
-import edu.hzuapps.androidworks.examples.GridViewActivity;
-import edu.hzuapps.androidworks.examples.LinearLayoutActivity;
-import edu.hzuapps.androidworks.examples.ListViewActivity;
-import edu.hzuapps.androidworks.examples.NetworkActivity;
-import edu.hzuapps.androidworks.examples.RelativeLayoutActivity;
-import edu.hzuapps.androidworks.examples.ServiceDemoActivity;
-import edu.hzuapps.androidworks.examples.SharedPreferencesActivity;
-import edu.hzuapps.androidworks.examples.TableLayoutActivity;
-import edu.hzuapps.androidworks.examples.ViewBasicActivity;
-import edu.hzuapps.androidworks.examples.ViewDemoActivity;
-import edu.hzuapps.androidworks.homeworks.BackActivity;
-import edu.hzuapps.androidworks.homeworks.com123456.Com123456Activity;
-
-public class MainActivity extends ActionBarActivity {
-
-    public static final String TAG = MainActivity.class.getSimpleName();
-
-    String mName;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-//         TODO 解析学生实验目录
-        setContentView(R.layout.activity_main);
-
-        // 显示例子按钮
-        prepareExampleButton(R.id.button_activitybasic);
-        prepareExampleButton(R.id.button_viewbasic);
-        prepareExampleButton(R.id.button_fragmentdemo);
-        prepareExampleButton(R.id.button_servicedemo);
-        prepareExampleButton(R.id.button_broadcastdemo);
-        prepareExampleButton(R.id.button_contentprovidedemo);
-        prepareExampleButton(R.id.button_viewdemo);
-
-        // 随机显示一位同学的作业
-        prepareExampleButton(R.id.button_random);
-
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        // Inflate the menu; this adds items to the action bar if it is present.
-        getMenuInflater().inflate(R.menu.menu_main, menu);
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        // Handle action bar item clicks here. The action bar will
-        // automatically handle clicks on the Home/Up button, so long
-        // as you specify a parent activity in AndroidManifest.xml.
-        int id = item.getItemId();
-
-        //noinspection SimplifiableIfStatement
-        if (id == R.id.action_settings) {
-            System.out.println("Yes");
-//         Log.i(this.getClass().getSimpleName(), "View created!");
-            Log.i("标题", "信息");
-            return true;
-        }
-
-        return super.onOptionsItemSelected(item);
-    }
-
-    private void openActivity(Activity activity, Class activityClass) {
-        Intent intent = new Intent(activity, activityClass);
-        activity.startActivity(intent);
-    }
-
-    private void prepareExampleButton(final int buttonId) {
-        final Activity thisActivity = this;
-        Button button = (Button) findViewById(buttonId);
-        if (button != null) {
-            button.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View view) {
-                    openActivity(thisActivity, getActivity(buttonId));
-                }
-            });
-        } else {
-            Log.e(TAG, "按钮不存在: " + buttonId);
-        }
-    }
-
-    private Class getActivity(int id) {
-        if (R.id.button_activitybasic == id) {
-            return ActivityBasicActivity.class;
-        } else if (R.id.button_viewbasic == id) {
-            return ViewBasicActivity.class;
-        } else if (R.id.button_fragmentdemo == id) {
-            return FragmentDemoActivity.class;
-        } else if (R.id.button_servicedemo == id) {
-            return ServiceDemoActivity.class;
-        } else if (R.id.button_broadcastdemo == id) {
-            return BroadcastReceiverActivity.class;
-        } else if (R.id.button_contentprovidedemo == id) {
-            return ContentProviderActivity.class;
-        } else if (R.id.button_viewdemo == id) {
-            return ViewDemoActivity.class;
-        } else if (R.id.button_random == id) {
-            return FileShareActivity.class;
-        } else {
-            return BackActivity.class;
-        }
-    }
-}
diff --git a/app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/MainActivity.java b/app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/Com1314080901201Activity.java
similarity index 62%
rename from app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/MainActivity.java
rename to app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/Com1314080901201Activity.java
index 22610b37..0b050f40 100644
--- a/app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/MainActivity.java
+++ b/app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901201/Com1314080901201Activity.java
@@ -1,21 +1,21 @@
-package com.example.messagestomailbox;
+package com.example.personalinformation;
 
 import android.os.Bundle;
 import android.app.Activity;
 import android.view.Menu;
 
-public class MainActivity extends Activity {
+public class Com1314080901201Activity extends Activity {
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
-		setContentView(R.layout.activity_main);
+		setContentView(R.layout.activity_com1314080901201);
 	}
 
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu) {
 		// Inflate the menu; this adds items to the action bar if it is present.
-		getMenuInflater().inflate(R.menu.main, menu);
+		getMenuInflater().inflate(R.menu.com1314080901201, menu);
 		return true;
 	}