为Java中的Calendar类导入以下包
import java.util.Calendar;
首先,创建一个Calendar对象并显示当前日期和时间
Calendar calendar = Calendar.getInstance(); System.out.println("Current Date and Time = " + calendar.getTime());
现在,让我们使用calendar.add()方法和Calendar.WEEK_OF_YEAR常量增加周数。
calendar.add(Calendar.WEEK_OF_YEAR, 2);
以下是一个例子
import java.util.Calendar; public class Demo { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); System.out.println("Current Date = " + calendar.getTime()); //加2周 calendar.add(Calendar.WEEK_OF_YEAR, 2); System.out.println("Updated Date = " + calendar.getTime()); } }
输出结果
Current Date = Thu Nov 22 18:13:38 UTC 2018 Updated Date = Thu Dec 06 18:13:38 UTC 2018