Easiest On click method

AwesomeButtonActivity_1.java

public class AwesomeButtonActivity extends AppCompatActivity {

    private Button awesomeButton;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        awesomeButton = new Button(this);

        awesomeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                awesomeButtonClicked();
            }
        });
    }

    private void awesomeButtonClicked() {
        awesomeButton.setText("AWESOME!");
    }
}

One reason why I avoid this is because it clutters up your onCreate method. This becomes even more apparent when you want to observe click events from multiple views. Of course retrolambda or simply using Kotlin would make it possible to take this from 5 lines down to a single line.