jav获取日期 时分秒为0

要获取Java中的日期，并将时分秒设置为0，可以使用以下代码：

import java.util.Calendar;

public class Main {
    public static void main(String\[\] args) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);

        System.out.println(calendar.getTime());
    }
}

这段代码使用`Calendar`类来获取当前日期，并将时、分、秒和毫秒都设置为0。最后，通过`getTime()`方法将`Calendar`对象转换为`Date`对象并打印出来。这样就可以得到日期的时分秒都为0的结果。
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