How to get yesterday's current date in Java

In Java, get yesterday's current date, you can use the calendar to do it, or you can do it by using date, as follows:

1. Use Calendar to do:

Calendar cal=calendar.getinstance ();
System.out.println (calendar.date);//5
Cal.add (calendar.date,-1);
Date Time=cal.gettime ();
System.out.println (New SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss"). Format (time);

2. Use Date to do:

Date today = new Date ();
/* SYSTEM.OUT.PRINTLN (New SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss"). Format (today);
System.out.println (Today.gettime ());
System.out.println (1477058241633l-86400000l); * *
Date yesterday = new Date (Today.gettime ()-86400000L);//86400000l, which means 1 days = 24 hours x 60 Minutes x 60 seconds x 1000 milliseconds unit is L.
That 86400000L can be written as 24*60*60*1000l
System.out.println (24*60*60*1000l);
System.out.println (New SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss"). Format (yesterday));

Also available in the database, get current time now or sysdate, get yesterday's current time date:

Select DATEADD (Day, 1, now);--In SQL Server

Select Date_sub (current_date (), Interval 1 day)--in MySQL

Select Sysdate-interval ' 1 ' Day from dual;--in Oracle

How to get yesterday's current date in Java