package time; import java.util.Calendar; public class TestWeek { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); //获取当年第几周 int weekOfYear = calendar.get(Calendar.WEEK_OF_YEAR); //获取当周星期几 int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK); //如果是周日,说明是上周的而不是本周的,要获取到上周,后退一天 if (calendar.get(Calendar.DAY_OF_WEEK) == 1) { calendar.add(Calendar.DATE, -1); weekOfYear = calendar.get(Calendar.WEEK_OF_YEAR); //如果是周日,直接设置星期为7 dayOfWeek = 7; } else { //如果不是周日,星期减一 dayOfWeek--; } //最终获取周+星期 System.out.println(String.format("今天是第%d周,星期%d",weekOfYear , dayOfWeek)); } }
java周一从1开始
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转载自blog.csdn.net/oceanyang520/article/details/81110015
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