Java gets the method of yesterday's date string _java

The example in this article describes Java's method for getting yesterday's date string. Share to everyone for your reference, specific as follows:

Import Java.text.SimpleDateFormat;
Import Java.util.Date; public class Test {/** * gets yesterday's date string * * @param nowdate * Current date String * @return/public static S
    Tring Getlastdayinfo (String nowdate) {String yesterday = "";
    int year = 0;
    int month = 0;
    int day = 0;
      try {year = Integer.parseint (nowdate.substring (0, Nowdate.indexof ("-")));
      month = Integer.parseint (nowdate.substring (Nowdate.indexof ("-") + 1, Nowdate.lastindexof ("-)"));
      Day = Integer.parseint (nowdate. Substring (Nowdate.lastindexof ("-") + 1));
      System.out.println ("nowyear =" + year);
      System.out.println ("Nowmonth =" + month);
      System.out.println ("Dayday =" + day);
      Day = day-1;
        if (day = = 0) {month = month-1;
          if (month = = 0) {//January month = 12;
          Day = 31;
        Year = year-1; else {//not.
          Switch (month) {//1|3|5|7|8|
          10|12) day=31;;
            Case 1:day = 31;
          Break
            Case 3:day = 31;
          Break
            Case 5:day = 31;
          Break
            Case 7:day = 31;
          Break
            Case 8:day = 31;
          Break
            Case 10:day = 31;
          Break
            Case 12:day = 31;
          Break
          4|6|9|11) day=30;;
            Case 4:day = 30;
          Break
            Case 6:day = 30;
          Break
            Case 9:day = 30;
          Break
            Case 11:day = 30;
          Break Case 2:if (year% 4 = 0 && Year%!= 0 | | year% = = 0) {//Leap y
            Ear day = 29;
          else Day = 28;
  }
        }    } String monthstr = "";
      String daystr = "";
      if (Month <) {Monthstr = "0" + string.valueof (month);
      else {monthstr = string.valueof (month);
      } if (Day <) {Daystr = "0" + string.valueof (day);
      else {daystr = string.valueof (day);
    } yesterday = string.valueof (year) + "-" + Monthstr + "-" + daystr;
    catch (Exception e) {e.printstacktrace ();
  return yesterday;
    public static void Main (string[] args) throws Exception {System.out.println ("2008-03-01");
    System.out.println (Getlastdayinfo ("2008-01-01"));
    SimpleDateFormat SDF = new SimpleDateFormat ("mmmm-dd-yyyy");
    Date date;
    String datetime = "02-14-1984";
      try {date = Sdf.parse (datetime);
    System.out.println (Sdf.format (date));
    catch (Exception e) {System.out.println (E.getmessage ()); } Date D =Java.sql.Date.valueOf ("2008-07-06");
  System.out.println (D.tostring ());

 }
}

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