Use the Dateutils framework to deal with the date and time in the Java library
Use the Dateutils framework to deal with the date and time in the Java library
In Java development, the date and time of processing is a common task.To simplify this process, the Java class library provides many practical tools and classes to handle the date and time.One of the widely used classes is DateUTILS, which is part of the Apache Commons Lang library.
The Dateutils class provides many practical methods for processing and operation date and time.Below we will introduce some of the main functions and usage.
1. Analyze and formatting date time:
Dateutils provides PAREDATE and FormatDate methods, which can analyze the string as the date object and format the date object into a specified string form.This is very useful for the date from the user input and displaying the date to the user.
import org.apache.commons.lang3.time.DateUtils;
Date parsedDate = DateUtils.parseDate("2022-10-01", "yyyy-MM-dd");
String formattedDate = DateUtils.formatDate(parsedDate, "dd/MM/yyyy");
System.out.println(formattedDate);
2. Increase or reduce time:
DateUtils provides the ADD and subtract methods, which can increase or reduce the specified amount of time.The amount of time can be based on the year, month, week, day, hours, minutes, seconds, and milliseconds.
import org.apache.commons.lang3.time.DateUtils;
Date currentDate = new Date();
Date newDate = DateUtils.addDays(currentDate, 7);
System.out.println(newDate);
3. Comparison date:
Dateutils provides Equals and Compare methods for comparing whether two dates are equal or one date before, before, or after another date.
import org.apache.commons.lang3.time.DateUtils;
Date date1 = new Date();
Date date2 = new Date();
boolean isEqual = DateUtils.equals(date1, date2);
int comparisonResult = DateUtils.compare(date1, date2);
System.out.println(isEqual);
System.out.println(comparisonResult);
4. Section of the interception date:
Dateutils provides the Truncate method, which can intercept the time part of the date object and only retain the date part.
import org.apache.commons.lang3.time.DateUtils;
Date currentTime = new Date();
Date truncatedDate = DateUtils.truncate(currentTime, Calendar.DAY_OF_MONTH);
System.out.println(truncatedDate);
In addition to the above functions, Dateutils also provides many other practical methods, such as setting time part, the difference in the calculation date, all the date between the specified time period, and so on.
Summarize:
Through the DateUtils framework, we can easily handle the date and time, and perform various operations, such as analysis, formatting, increasing, decrease, comparison and interception date.It is a powerful and convenient tool in the Java class library that helps us handle the tasks related to the date and time related to us.
I hope this article can help you know how to use the Dateutils framework to process the date and time in the Java class library!
