java date format

     1. SimpleDateFormat f4 = new SimpleDateFormat("Today is"+"yyyy year MM month dd day E kk dot mm minute");//Different date formats can be displayed according to different style requests
     System.out.println(f4.format(new date()));
     The date format output by the code is: the current time is 16:46 on March 22, 2016

      2. The time format only displays the year, month and day:
      SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");//Set the date format
      Date d=sdf.parse(newstime); 
      String str=df.format(d); 
      System.out.println(str); // output format yyyy-mm-dd

      
      3. Add one day after today's time:
      SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//Set the date format
      Date date= (new Date());   
      Calendar c = Calendar.getInstance ();  
      c.setTime(date); //Set the current date  
      c.add(Calendar.DATE, 1); //Add 1 day to the
      date -1 to subtract one day date = c.getTime();
      String str=df. format(date);   
      System.out.println(str); // output format yyyy-MM-dd HH:mm:ss

         System.out.println(f4.format(new date()));
         The date format of the code output is: the current time is 16:46 on March 22, 2016