How to Convert string to date in java

• Whenever are having a requirement of converting string (date as string ) in to date we need to use SimpledateFormat class which is present in java.text package.
• To convert string to date in java we need to follow two steps.
• First we need to create SimpledateFormat class object by passing pattern of date which we want as a string.
• Ex: SimpleDateFormat  formatter = new SimpleDateFormat("dd/MM/yyyy");
• And next we need to call parse() method on the object of  SimpleDateFormat then it will returns Date object.
• parse() method  throws ParseException so need to handle this exception.
• By using format method of the object will get string format of given date
• formatter.format(date).
• How to convert java string to date object 
• Java SimpleDateFormat String to Date conversion and parsing examples

Letter	Date or Time Component	Presentation	Examples
G	Era designator	Text	AD
y	Year	Year	2015; 15
Y	Week year	Year	2009; 09
M	Month in year	Month	July; Jul;07
w	Week in year	Number	25
W	Week in month	Number	3
D	Day in year	Number	143
d	Day in month	Number	37
F	Day of week in month	Number	1
E	Day name in week	Text	Tuesday; Tue
u	Day number of week (1 = Monday, ..., 7 = Sunday)	Number	1
a	Am/pm marker	Text	PM
H	Hour in day (0-23)	Number	0
k	Hour in day (1-24)	Number	12
K	Hour in am/pm (0-11)	Number	0
h	Hour in am/pm (1-12)	Number	12
m	Minute in hour	Number	30
s	Second in minute	Number	30
S	Millisecond	Number	778
z	Time zone	General time zone	Pacific Standard Time; PST; GMT-08:00
Z	Time zone	RFC 822 time zone	-0800
X	Time zone	ISO 8601 time zone	-08; -0800; -08:00

(Ref: Oracle DOCS)

Example program on SimpleDateFormat :

1. Convert string to date in java in MMM dd, yyyy format

Input : Jan 1, 2015 (MMM dd, yyyy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6. SimpleDateFormat formatter = new SimpleDateFormat("MMM dd, yyyy");
7. String dateInString = "Jan 1, 2015"; 
8.  
9. try{
10.  
11. Date date = formatter.parse(dateInString);
12. System.out.println(date);
13. System.out.println(formatter.format(date));  
14.  
15. }catch(ParseException e){
16. e.printStackTrace();
17. }
18. }
19. } 
20. 
    
21. Output: 
22. Thu Jan 01 00:00:00 IST 2015
23. Jan 01, 2015

2.How to convert string into date format in java day MMM dd, yyyy format example

 Input : Sat, Feb 14 2015 (E, MMM dd yyyy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6.  
7. SimpleDateFormat formatter = new SimpleDateFormat("E, MMM dd yyyy");
8. String dateInString = "Sat, February 14 2015"; 
9.  
10. try{
11.  
12. Date date = formatter.parse(dateInString);
13. System.out.println(date);
14. System.out.println(formatter.format(date));  
15.  
16. }catch(ParseException e){
17. e.printStackTrace();
18. }
19. }
20. }
21. Output: 
22. Sat Feb 14 00:00:00 IST 2015
23. Sat, Feb 14 2015

3. Convert string to date in java in dd/MM/ yyyy format example program

Input : 01/01/2015 (dd/MM/yyyy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6.  
7. SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy);
8. String dateInString = "01/01/2015";
9.  
10. try{
11.  
12. Date date = formatter.parse(dateInString);
13. System.out.println(date);
14. System.out.println(formatter.format(date)); 
15.  
16. }catch(ParseException e){
17. e.printStackTrace();
18. }
19. }
20. } 
21. 
    
22. Output: 
23. Thu Jan 01 00:00:00 IST 2015
24. 01/01/2015

4. Convert string to date in java in dd-MMM-yyyy format example program

Input : 1-Jan-2015 (dd-MMM-yyyy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6. SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy");
7. String dateInString = "1-Jan-2015"; 
8.  
9. try{
10.  
11. Date date = formatter.parse(dateInString);
12. System.out.println(date);
13. System.out.println(formatter.format(date));  
14.  
15. }catch(ParseException e){
16. e.printStackTrace();
17. }
18. }
19. } 
20. 
    
21. Output: 
22. Thu Jan 01 00:00:00 IST 2015
23. 01-Jan-2015

  5. Convert string to date in java in yyyyMMdd format example program

Input : 20150101 (yyyyMMdd):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6.  
7. SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
8. String dateInString = "20150101"; 
9.  
10. try{
11.  
12. Date date = formatter.parse(dateInString);
13. System.out.println(date);
14. System.out.println(formatter.format(date));  
15.  
16. }catch(ParseException e){
17. e.printStackTrace();
18. }
19. }
20. } 
21. 
    
22. Output: 
23. Thu Jan 01 00:00:00 IST 2015
24. 20150101

6.Convert string to date in java in ddMMyyyy format example program

Input : 01012015 (ddMMyyyy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6.  
7. SimpleDateFormat formatter = new SimpleDateFormat("ddMMyyyy");
8. String dateInString = "01012015"; 
9.  
10. try{
11.  
12. Date date = formatter.parse(dateInString);
13. System.out.println(date);
14. System.out.println(formatter.format(date));  
15.  
16. }catch(ParseException e){
17. e.printStackTrace();
18. }
19. }
20. } 
21. 
    
22. Output: 
23. Thu Jan 01 00:00:00 IST 2015
24. 01012015

7.Convert string to date in java in dd-MMM-yy format example program

Input : 01-January-15 (dd-MMM-yy):

1. package com.instanceofjava;
2.  
3. public Class DateFormatDemo{ 
4.  
5. public static void main (String args[]) {
6.  
7. SimpleDateFormat formatter = new SimpleDateFormat("dd-MMMM-yy");
8. String dateInString = "01-January-2015"; 
9.  
10. try{
11.  
12. Date date = formatter.parse(dateInString);
13. System.out.println(date);
14. System.out.println(formatter.format(date));  
15.  
16. }catch(ParseException e){
17. e.printStackTrace();
18. }
19. }
20. } 
21. 
    
22. Output: 
23. Thu Jan 01 00:00:00 IST 2015
24. 01012015

8.Convert string to date in java in dd-M-yyyy HH:mm:SS format example program