mlegy

public static String format(int n) {
        String num = "" + n;
        String stringNum = "";
        int numLength = num.length();
        for (int i = 0; i < numLength; i++) {
           if ((numLength - i) % 3 == 0 && i != 0) {
                stringNum += ",";
            }
            stringNum += num.charAt(i);
            }

mlegy

public static String toString(int n) {
    String sign = "";
    String num = "";
    if (n == 0) {
        return "0";
    } else if (n < 0) {
        sign = "-";
        n = -n;
    }
    while (n != 0) {

mlegy

private lateinit var binding: ActivityMainBinding

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    binding = ActivityMainBinding.inflate(layoutInflater)
    setContentView(binding.root)
}

mlegy

android {
..
    buildFeatures {
       viewBinding true
    }
}

mlegy

private var _binding: FragmentMainBinding? = null
private val binding get() = _binding!!

override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {
    _binding = FragmentMainBinding.inflate(inflater, container, false)
    return binding.root

mlegy

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"

mlegy

public final class ActivityMainBinding implements ViewBinding {
  @NonNull
  private final ConstraintLayout rootView;

  @NonNull
  public final TextView textView;

mlegy

@NonNull
public static ActivityMainBinding inflate(@NonNull LayoutInflater inflater) {
  return inflate(inflater, null, false);
}

@NonNull
public static ActivityMainBinding inflate(@NonNull LayoutInflater inflater,
    @Nullable ViewGroup parent, boolean attachToParent) {
  View root = inflater.inflate(R.layout.activity_main, parent, false);
  if (attachToParent) {

mlegy

@NonNull
public static ActivityMainBinding bind(@NonNull View rootView) {
  // The body of this method is generated in a way you would not otherwise write.
  // This is done to optimize the compiled bytecode for size and performance.
  int id;
  missingId: {
    id = R.id.textView;
    TextView textView = rootView.findViewById(id);
    if (textView == null) {
      break missingId;

mlegy

plugins {
    ..
    id 'kotlin-parcelize'
}