Java Intro #7-1

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        /* 省略 */

        TextView textView = findViewById(R.id.textView);
        String message = "こんにちは";
        textView.setText(message);
    }
}