Java uses FastDateFormat to handle date and time formatting
Maven coordinates of dependent class libraries:
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
FastDateFormat is a class in the Apache Commons Lang library, which provides a fast and Thread safety method for formatting and parsing dates and times. It is an improvement of SimpleDateFormat in Java, with better performance and Thread safety.
The following is a complete Java code example that demonstrates how to use FastDateFormat for date and time formatting:
import org.apache.commons.lang3.time.FastDateFormat;
import java.text.ParseException;
import java.util.Date;
public class FastDateFormatExample {
public static void main(String[] args) {
//Get current date
Date currentDate = new Date();
//Define date format
String pattern = "yyyy-MM-dd HH:mm:ss";
//Format Date
String formattedDate = FastDateFormat.getInstance(pattern).format(currentDate);
System.out.println("Formatted Date: " + formattedDate);
//Parse Date
try {
Date parsedDate = FastDateFormat.getInstance(pattern).parse(formattedDate);
System.out.println("Parsed Date: " + parsedDate);
} catch (ParseException e) {
e.printStackTrace();
}
}
}
Output:
Formatted Date: 2022-01-01 12:34:56
Parsed Date: Sat Jan 01 12:34:56 CST 2022
Summary: FastDateFormat provides a fast, Thread safety way to format and parse dates and times. It is a better choice than the built-in SimpleDateFormat in Java, especially for high-performance requirements in multi-threaded environments. When in use, you can obtain an instance through the getInstance() method and pass the date format pattern for formatting and parsing operations.
