This is the 1st Activity

class1.java

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ViewFlipper;

public class Class1 extends Activity
{
	EditText search;
	Button btn_search,btn_g,btn_y,btn_a;
	WebView wv1,wv2,wv3;
	ViewFlipper vf;
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        wv1=(WebView)findViewById(R.id.wv1);
        wv2=(WebView)findViewById(R.id.wv2);
        wv3=(WebView)findViewById(R.id.wv3);
        vf=(ViewFlipper)findViewById(R.id.vf);
       btn_g=(Button)findViewById(R.id.btn_g);
       btn_y=(Button)findViewById(R.id.btn_y);
       btn_a=(Button)findViewById(R.id.btn_a);
       
        search=(EditText)findViewById(R.id.search);
        btn_search=(Button)findViewById(R.id.btnSearch);
       
        btn_search.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) 
			{
				Intent i=new Intent(Class1.this,Class2.class);
				i.putExtra("atUserName", search);
				//i.setData(intent.getData()); 
				startActivity(i);
				
			}
        });
        
    }
}

Class2.java

package com.kritnu.android;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.ViewFlipper;

public class Class2 extends Activity 
{
	Button btn_search,btn_g,btn_y,btn_a;
	WebView wv1,wv2,wv3;
	ViewFlipper vf;
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main2);
        
        wv1=(WebView)findViewById(R.id.wv1);
        wv2=(WebView)findViewById(R.id.wv2);
        wv3=(WebView)findViewById(R.id.wv3);
        vf=(ViewFlipper)findViewById(R.id.vf);
       btn_g=(Button)findViewById(R.id.btn_g);
       btn_y=(Button)findViewById(R.id.btn_y);
       btn_a=(Button)findViewById(R.id.btn_a);
       
       Bundle extraData = getIntent().getExtras();
       String atUserName = extraData.getString("com.kritnu.android");
       btn_g.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				//vf.showNext();
				//wv1.goBackOrForward(2);
				//wv1.setWebViewClient(new HelloWebViewClient());
				wv1.loadUrl("http://www.google.com");
				//vf.setDisplayedChild(0);
				
			}
			
		});
       btn_y.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				
				wv2.loadUrl("http://search.yahoo.com");
//vf.setDisplayedChild(1);

			}
		});
       
       btn_a.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				wv3.loadUrl("http://www.ask.com");
				//vf.setDisplayedChild(2);
			}
		});
     
   }
   private class HelloWebViewClient extends WebViewClient {
       @Override
       public boolean shouldOverrideUrlLoading(WebView view, String url) {
           view.loadUrl(url);
           return true;
       }
   }
    }