字符串和Date类型之间的转换

   Calendar   cal   =  Calendar.getInstance();    String   maxDate   = cal.get(Calendar.YEAR)+"-"+ cal.get(Calendar.MONTH)+"-"+ cal.getActualMaximum(Calendar.DATE);    String   minDate   =  cal.get(Calendar.YEAR)+"-"+ cal.get(Calendar.MONTH)+"-"+ cal.getActualMinimum(Calendar.DATE);    System.out.println(maxDate);   System.out.println(minDate);

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