Play with String and Date

String m= "20111111";

String m2= "121222";
        

SimpleDateFormat mDateFormatFR = new SimpleDateFormat("yyyymmdd"); 

SimpleDateFormat mDate = new SimpleDateFormat("dd-MM-yy ");
       
 

SimpleDateFormat mDateFormatFR2 = new SimpleDateFormat("HHmmss");

SimpleDateFormat mTime = new SimpleDateFormat("HH:mm:ss");
       

//Convert String to Date

Date x = mDateFormatFR.parse(m);

//Convert Date to String with format dd-MM-yy

String x2 = mDate.format(x);
        

//Convert String to Date

Date x3 = mDateFormatFR2.parse(m2);

//Convert Date to String with format HH:mm:ss

String x4 = mTime.format(x3);
        

System.out.println("x :" + x);

System.out.println("x2 :" + x2);

System.out.println("x3 :" + x3);

System.out.println("x4 :" + x4);

Output:
x :Tue Jan 11 00:11:00 SGT 2011
x2 :11-01-11
x3 :Thu Jan 01 12:12:22 SGT 1970
x4 :12:12:22