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import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateTimeUtils {

    public static String getCurrentDateToFormat(SimpleDateFormat dateFormat) {
        return dateToFormat(new Date(), dateFormat);
    }

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public class App extends Application {
    private static LifecycleManager manager = new LifecycleManager();
  
    @Override
    public void onCreate() {
        super.onCreate();
        registerActivityLifecycleCallbacks(manager);
    }

    public static boolean isAppForeground() {

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# built application files
*.apk
*.ap_

# files for the dex VM
*.dex

# Java class files
*.class

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import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

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private boolean isEmailValid(String email){
    return android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}  

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  public static void showKeyboard(Context context, View view) {
        InputMethodManager inputMethodManager =(InputMethodManager)context.getSystemService(Activity
                .INPUT_METHOD_SERVICE);
        inputMethodManager.showSoftInputFromInputMethod(view.getWindowToken(), 0);
    }

    public static void hideKeyboard(Context context, View view) {
        InputMethodManager inputMethodManager =(InputMethodManager)context.getSystemService(Activity
                .INPUT_METHOD_SERVICE);
        inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);

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public class DayView extends LinearLayout implements View.OnClickListener {
    private boolean isChecked = false;
    private OnCheckedChangeListener changeListener;
    private TextView textView;
    private Enums.WeekDays day;

    public DayView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
        initAttrs(attrs);

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public class Singleton{
  private static Singleton instance;
  
  private Singleton(){}
  
  public static synchronized Singleton getInstance(){
    if  (instance == null){
      instance = new Singleton();
    }
    return instance;

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 static long getMaxPairwiseProduct(int[] numbers) {
        long result = 0;
        int n = numbers.length;

        int max_position1 = -1;
        for (int i = 0; i < numbers.length; i++) {
            if ((max_position1 == -1) || (numbers[i] > numbers[max_position1])) {
                max_position1 = i;
            }
        }

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int number = 101;
int lastDigit = number % 10;