Java java.time.LocalDate用法及代碼示例

// import package used to work with current date and time
// api.
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public class GFG {
    public static void main(String[] args)
    {
        // now() is a method to return the
        // instance of LocalDateTime class.
        LocalDateTime localDate = LocalDateTime.now();
        // DateTimeFormatter class used to format and
        // parse date and time. ofPattern() is a method
        // used with DateTimeFormatter to format and
        // parse date and time.
        DateTimeFormatter dateformatter
            = DateTimeFormatter.ofPattern("MM dd, YYYY");
        // display the date
        System.out.println(dateformatter.format(localDate));
    }
}

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public class GFG {
    public static void main(String[] args)
    {
        // Parses the date
        LocalDate dt1 = LocalDate.parse("2021-01-07");
        LocalDate result = dt1.withDayOfYear(01);
        // Prints the date with year
        System.out.println("The date with day of year is: "
                           + result);
    }
}