package com. example. editgreeting: import android app. Activity;l Superclass public class MainActivity extends Activity EditText e; TextView t: Button b protected void onCreate(Bundle savedInstancestate)t super onCreate (savedInstancestate) setContentView(R layout activity main); e =(EditTextfindviewById(rid. myEdit Text) (TextView)findviewById(r id my Textview) b = Button)findViewById(R id my Button), Constructor b. setonClickListener (new MyButtononClickListener() class My ButtonOnClickListener implements pnClickListene @Override Interface Inner class public void onclick(View v)i // TODO Auto-generated method stub t setText(e getText2 Superclass Interface Constructor Inner class