Checkbox activity to show/hide multiple texts

[geojo]

Hi,
I am trying to learn the basics of android with Java and got struck halfway creating a simple app.
This checkbox code works for single text and can someone help me make one text visible and hide second one.

import ...

public class MainActivity extends AppCompatActivity {
    private TextView txtHelloWorld;
   @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       CheckBox checkBoxVisibility = findViewById(R.id.checkBox_visibility);
       txtHelloWorld = findViewById(R.id.txtHelloWorld);
       boolean isChecked = checkBoxVisibility.isChecked();
       updateTextVisibility(isChecked);
       checkBoxVisibility.setOnClickListener(v -> {

           boolean isChecked1 = ((CheckBox)v).isChecked();
           updateTextVisibility(isChecked1);
       });
   }
    private void updateTextVisibility(boolean isChecked) {
        if (isChecked) {
            txtHelloWorld.setVisibility(View.VISIBLE);
        } else {
            txtHelloWorld.setVisibility(View.INVISIBLE);
        }
    }
}