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 public static void main(String[] args) throws ParseException {
  String str = "yyyy-MM-dd 00:00:00.0";
  String str1 = str.substring(0, 10);
  /*
   * ½«yyyy-1-1ת»»³Éyyyy-01-01
   */
  SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
  Date date = sdf.parse(str1);
  String str2 = sdf.format(date);
  String year = str2.substring(0, 4);
  String month = str2.substring(5, 7);
  String day = str2.substring(8, 10);
  Calendar c = Calendar.getInstance();
  c.set(Integer.parseInt(year), Integer.parseInt(month), Integer
    .parseInt(day));
  /*
   * ÈÕÆÚ¼Ó1£¬È翪ʼÊÇyyyyÄê1ÔÂ1ÈÕ£¬´¦Àíºó¾ÍÊÇyyyyÄê1ÔÂ2ÈÕ
   */
  c.add(Calendar.DAY_OF_MONTH, 1);
  year = Integer.toString(c.get(Calendar.YEAR));
  month = Integer.toString(c.get(Calendar.MONTH));
  day = Integer.toString(c.get(Calendar.DATE));
  String newDate = year + "-" + month + "-" + day;
  System.out.println(newDate);
 }


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1. MySQL(http://www.mysql.com)mm.mysql-2.0.2-bin.jar ;
Class.forName( "org.gjt.mm.mysql.Driver" );
cn = DriverManager.getConnection( "jdbc:mysql://MyDbComputerNameOrIP:3306/myDatabaseName", sUsr, sPwd );
2. PostgreSQL(http://www.de.postgresql.org)pgjdbc2.jar ;
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