Date initialization

/**
* 日期时间初始格式
* <p>Title: main
* <p>Description: 
* @param args
*/
public static void main(String[] args) {
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
String timestart = dateFormat.format(date);
String timestop = dateFormat.format(date);
System.out.println(timestart + " 00:00:00");
System.out.println(timestop + " 23:59:59");
}