toPersianDay method
Implementation
String toPersianDay() {
String day = this;
day = day.replaceAll("Sunday", "یک شنبه");
day = day.replaceAll("Monday", "دو شنبه");
day = day.replaceAll("Tuesday", "سه شنبه");
day = day.replaceAll("Wednesday", "چهار شنبه");
day = day.replaceAll("Thursday", "پنج شنبه");
day = day.replaceAll("Friday", "جمعه");
day = day.replaceAll("Saturday", "شنبه");
return day;
}