android - next button in Eclipse -

i create application eclipse contain 2 activity , want go mainactivity activity2 , create button run didn't work me fix

if need other code tell me

this code for mainactivity (xml):

  <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:background="#6f0fba"    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:layout_alignparenttop="true"     android:layout_centerhorizontal="true"     android:layout_margintop="136dp"     android:text="@string/mynews"     android:textcolor="#ffffff"     android:textsize="20sp" />      <button     android:id="@+id/button01"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentbottom="true"     android:layout_alignparentright="true"     android:layout_marginbottom="30dp"     android:text="@string/next" />      <linearlayout     android:id="@+id/logo"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentleft="true"     android:layout_alignparentright="true"     android:layout_alignparenttop="true"     android:orientation="vertical" >      <imageview         android:id="@+id/imageview1"         android:layout_width="match_parent"         android:layout_height="131dp"         android:src="@drawable/ic_launcher" />     </linearlayout>      <textview     android:id="@+id/textview01"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerhorizontal="true"     android:layout_centervertical="true"     android:text="@string/welcome"     android:textcolor="#ffffff"     android:textsize="66sp" />   <view   android:id="@+id/button02"/>     </relativelayout>  

mainactivity (java):

package com.it332.mynews; import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.view; import android.widget.button;   public class mainactivity extends activity { /** called when activity first created. */ @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);  setcontentview(r.layout.activity_main);  button next = (button) findviewbyid(r.id.button01); next.setonclicklistener(new view.onclicklistener() {     public void onclick(view view) {         intent myintent = new intent(view.getcontext(), activity2.class);         startactivityforresult(myintent, 0);     }  });     }   } 

this menifest

  <?xml version="1.0" encoding="utf-8"?>   <manifest xmlns:android="http://schemas.android.com/apk/res/android"   package="com.it332.mynews"   android:versioncode="1"   android:versionname="1.0" >     <uses-sdk   android:minsdkversion="8"   android:targetsdkversion="17"   android:maxsdkversion="17" />     <application     android:allowbackup="true"     android:icon="@drawable/ic_launcher"     android:label="@string/app_name"     android:theme="@style/apptheme" >     <activity         android:name="com.it332.mynews.mainactivity"         android:label="@string/app_name"          >         <intent-filter>             <action android:name="android.intent.action.main" />              <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity>     <activity android:name=".activity2"></activity>   </application>    </manifest> 

try way

intent myintent = new intent(mainactivity.this, activity2.class); startactivityforresult(myintent, 0); 

and have put activity2 in android manifest file:

like:

<application         android:allowbackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <activity             android:name=".mainactivity"              android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.main" />                  <category android:name="android.intent.category.launcher" />             </intent-filter>             <activity             android:name=".activity2"/>         </activity>     </application>