Use the NSCALA TIME framework to calculate and convect it in the Java class library
Use the NSCALA TIME framework to calculate and convect it in the Java class library
In Java programming, time calculation and conversion are a common demand.NSCala Time is a time and date processing library based on the SCALA language, which provides a simple and convenient API for time calculation and conversion.Although it is written in Scala, it can also be used in the Java project.
NSCala Time provides many convenient methods to handle time and date.Here are several common cases, showing how to use NSCALA TIME for time computing and conversion in Java.
1. Calculation date difference
import com.github.nscala_time.time.StaticDateTimeFormat;
import org.joda.time.DateTime;
import org.joda.time.Days;
public class DateDifferenceExample {
public static void main(String[] args) {
DateTime startDate = StaticDateTimeFormat.forPattern("yyyy-MM-dd").parseDateTime("2022-01-01");
DateTime endDate = StaticDateTimeFormat.forPattern("yyyy-MM-dd").parseDateTime("2022-01-10");
int daysDifference = Days.daysBetween(startDate, endDate).getDays();
System.out.println ("Date difference:" + daysdifference + "sky");
}
}
In the above example, we use NSCala Time's `StaticDateTimeFormat` class to specify the date of the date, and use the` PARSEDATETIME method to convert the date string to the `Datetime` object.Then, we use the `Daysbetween` method of the` Days` class to calculate the number of days between the two dates.
2. Formatting date
import com.github.nscala_time.time.StaticDateTimeFormat;
import org.joda.time.DateTime;
public class DateFormatExample {
public static void main(String[] args) {
DateTime currentDate = new DateTime();
String formattedDate = currentDate.toString(StaticDateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss"));
System.out.println ("current date:" + formatteddate);
}
}
In the above example, we use NSCala Time's `StaticDateTimeFormat` class to specify the date format, and use the` Tostring` method to format the date object to format the string format.
3. Time calculation
import com.github.nscala_time.time.StaticDateTimeFormat;
import org.joda.time.DateTime;
import org.joda.time.Duration;
public class TimeCalculationExample {
public static void main(String[] args) {
DateTime startTime = StaticDateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss").parseDateTime("2022-01-01 09:00:00");
DateTime endTime = StaticDateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss").parseDateTime("2022-01-01 10:30:00");
Duration duration = new Duration(startTime, endTime);
long minutes = duration.getStandardMinutes();
System.out.println ("time difference:" + minutes + "minute");
}
}
In the above example, we use NSCala Time's `StaticDateTimeFormat` class to specify the format of time, and use the` PARSEDATETIME method to convert the time string to the `Datetime` object.Then, we use the `duration` class to calculate the duration between the start time and the end time, and use the time difference between the time of the minute of minutes.
Summarize:
By using the NSCala Time framework, we can easily calculate and convect it in the Java class library.Regardless of the calculation date difference, formatting date or time calculation, NSCala Time provides a simple and clear API to meet our needs.Using NSCala Time, we can easily process time and date in Java programming.
