Java8新特性 - 日期相关 - 日期加减

[b]1. 日期相减[/b]
DateDiff.java

package corejava2.date;

import java.time.LocalDate;
import java.time.Period;

public class DateDiff {

	public static void main(String[] args) {

/** The date at the end of the last century */

LocalDate endofCentury = LocalDate.of(2000, 12, 31);

LocalDate now = LocalDate.now();


Period diff = Period.between(endofCentury, now);


System.out.printf("The 21st century (up to %s) is %s old%n", now, diff);

System.out.printf("The 21st century is %d years, %d months and %d days old",

diff.getYears(), diff.getMonths(), diff.getDays());
	}
}

package corejava2.date;

import java.time.LocalDate;
import java.time.Period;

/**
 * DateAdd -- compute the difference between two dates (e.g., today and 700 days
 * from now).
 */
public class DateAdd {
	public static void main(String[] av) {

/** Today's date */

LocalDate now = LocalDate.now();


Period p = Period.ofDays(700);

LocalDate then = now.plus(p);


System.out.printf("Seven hundred days from %s is %s%n", now, then);
	}
}

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