We can use Intent to to open a browser window.
package com.java2s.app; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.Button; import android.widget.LinearLayout; /*from w ww .j ava2 s . c o m*/ public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout parentContainer = new LinearLayout(this); parentContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); parentContainer.setOrientation(LinearLayout.VERTICAL); Button button = new Button(this); button.setText("Press"); parentContainer.addView(button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent i = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://www.java2s.com")); startActivity(i); } }); setContentView(parentContainer); } }