问简单日期格式化程序解析函数错误

EN

 btn.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
         int day =  dpicker.getDayOfMonth();
         int month = dpicker.getMonth() + 1;

         if (month < 10)
         {
             monthS = "0" + month;
         }
         else
         {
             monthS = String.valueOf(month);
         }
         int year = dpicker.getYear();

         int minutes = tpicker.getCurrentMinute();
         int hours = tpicker.getCurrentHour();
         if (hours < 10)
         {
             hoursS = "0" + hours;
         }
         else
         {
             hoursS = String.valueOf(hours);
         }


          date = year + "-" + monthS + "-" + day + " " + hoursS + ":" +  minutes  ; 

         tview.setText("Date and Time are" + date) ;


        }
    });

   SimpleDateFormat sdf =   new SimpleDateFormat("yyyy-MM-dd hh:MM");

   try {
     newDate = sdf.parse(date);

} catch (java.text.ParseException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
tview2.setText(newDate.toString());