how to change custom font to bold italic in java

1public class MainActivity extends AppCompatActivity {
2
3    @Override
4    protected void onCreate(Bundle savedInstanceState) {
5        super.onCreate(savedInstanceState);
6        setContentView(R.layout.activity_main);
7
8        Typeface font = Typeface.createFromAsset(getAssets(), "fonts/bebas_neue_regular.ttf");
9
10        TextView tvNormal = (TextView) findViewById(R.id.normal);
11        tvNormal.setTypeface(font);
12
13        TextView tvBold = (TextView) findViewById(R.id.bold);
14        tvBold.setTypeface(font, Typeface.BOLD);
15
16        TextView tvItalic = (TextView) findViewById(R.id.italic);
17        tvItalic.setTypeface(font, Typeface.ITALIC);
18
19
20        TextView tvBoth = (TextView) findViewById(R.id.boldItalic);
21        tvBoth.setTypeface(font, Typeface.BOLD_ITALIC);
22    }
23}
24