使用java日历类获取一周的开始和结束日期

import java.util.Calendar;
import java.util.Date;

public class WeekDate {
    public static void main(String[] args) {
        Calendar calendar = Calendar.getInstance();
        // 获取一周的开始日期
        calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
        Date startDate = calendar.getTime();
        System.out.println("一周的开始日期：" + startDate);
        // 获取一周的结束日期
        calendar.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
        Date endDate = calendar.getTime();
        System.out.println("一周的结束日期：" + endDate);
    }
}

一周的开始日期：Sun Jan 01 00:00:00 CST 2023
一周的结束日期：Sat Jan 07 00:00:00 CST 2023