How to write this Kotlin code using java.

class BarterTrader : AppCompatActivity {

val binding by lazy{

ActivityShoppingBinding.inflate(layouInflate);

}

Override fun onCreate(savedInstanceState : bundel) {

super.onCreate(savedInstanceState);

setContentView(binding.root);

val navcontroller = findNavcontroller(R.id.bartertrader);

binding.bottomNavigation.setupWithNavController(navcontroller);

}

}