import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class DateConverterExample {
public static void main(String[] args) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateStr = "2021-01-01";
try {
Date date = formatter.parse(dateStr);
String formattedDate = formatter.format(date);
} catch (ParseException e) {
e.printStackTrace();
}
}
}
import java.util.Calendar;
public class DateCalculatorExample {
public static void main(String[] args) {
Calendar calendar = Calendar.getInstance();
calendar.set(2021, Calendar.JANUARY, 1);
calendar.add(Calendar.DAY_OF_MONTH, 10);
int month = calendar.get(Calendar.MONTH) + 1;
}
}
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
public class JodaTimeExample {
public static void main(String[] args) {
String dateStr = "2022-12-31";
DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd");
DateTime dateTime = DateTime.parse(dateStr, formatter);
DateTime nextDay = dateTime.plusDays(1);
String formattedDateTime = dateTime.toString("yyyy-MM-dd HH:mm:ss");
}
}
