• Java
  
• Bytecode
  
• Máquina Virtual
  
• Dalvik != JVM
  
• .dex
  
• Otimizado
  

• Activity
  
• Intent
  
• Services
  

public class MainActivity extends Activity {


	@Override
	protected void onCreate(Bundle savedInstanceState) {
	 	super.onCreate(savedInstanceState);
	 	setContentView(R.layout.activity_main);
		
	}
	
	@Override
	protected void onStart(){
	 	super.onStart();
	}
	
	@Override
	protected void onResume(){
	 	super.onResume();
	}
	
	@Override
	protected void onPause(){
	 	super.onPause();
	}
	
	@Override
	protected void onStop(){
	 	super.onStop();
	}
	
	@Override
	protected void onDestroy(){
	 	super.onDestroy();
	}