android - Error in MainActivity when implementing TabActivity -

i want page text on top(edittext) image (in fragmentlayout) , 2 tabs below image. output not showing tab in output have written code implement tabs. code notshowing error , in output mam not getting tab in output

i not getting correct output , not showing error tried without extending tabactivity (only extens activity) still output same image loaded above code of activity_main.xml

     <linearlayout 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:orientation="vertical"     tools:context=".mainactivity" >       <textview         android:id="@+id/tbol"         android:layout_width="250dp"         android:layout_height="30dp"         android:text="@string/heading"         android:textappearance="?android:attr/textappearancemedium"         android:textcolor="#f00"         android:textsize="25sp" />      <framelayout         android:layout_width="match_parent"         android:layout_height="160dp"         android:background="@drawable/leaf" >     </framelayout>     <tabhost     android:id="@android:id/tabhost"     android:layout_width="match_parent"     android:layout_height="match_parent" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical" >          <tabwidget              android:id="@android:id/tabs"             android:layout_width="match_parent"             android:layout_height="wrap_content" >         </tabwidget>          <framelayout             android:id="@android:id/tabcontent"             android:layout_width="match_parent"             android:layout_height="match_parent" >         </framelayout>         </linearlayout>       </tabhost>       </linearlayout> 

code of mainactivity.java is

package com.example.tabhost;     import android.os.bundle;    import android.app.tabactivity;    import android.content.intent;    import android.widget.tabhost;    import android.widget.tabhost.tabspec;      @suppresswarnings("deprecation")      public class mainactivity extends tabactivity {     tabhost th;     @override    protected void oncreate(bundle savedinstancestate) {       super.oncreate(savedinstancestate);       setcontentview(r.layout.activity_main);        th=gettabhost();        //for desc tab       tabspec descspec=th.newtabspec("description");       descspec.setindicator("description", null);       intent firstintent=new intent(this, decsriptiontab.class);       descspec.setcontent(firstintent);      //for information tab     tabspec infospec=th.newtabspec("information");     infospec.setindicator("information", null);     intent secondintent=new intent(this, info_tab.class);     descspec.setcontent(secondintent);     }    } 

this code of 2 .xml files

desc_layout.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"      xmlns:android="http://schemas.android.com/apk/res/android">       <textview android:text="this desc tab"             android:padding="15dp"             android:textsize="18sp"             android:layout_width="fill_parent"             android:layout_height="wrap_content"/>  </linearlayout> 

info_layout

<?xml version="1.0" encoding="utf-8"?> <linearlayout     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"      xmlns:android="http://schemas.android.com/apk/res/android">       <textview android:text="this info tab"             android:padding="15dp"             android:textsize="18sp"             android:layout_width="fill_parent"             android:layout_height="wrap_content"/>  </linearlayout> 

this code of corresponding java files

decsriptiontab.java

package com.example.tabhost;  import android.app.activity; import android.os.bundle;  public class decsriptiontab extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.desc_layout);     }    } 

info_tab.java

package com.example.tabhost;  import android.app.activity; import android.os.bundle;  public class info_tab extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.info_layout);     }   }