How to compare dates from a hashmap

I have a HashMap which has java.util.Date objects as keys. I want to compare these dates with a constant date object. When I do a map.getKey() it retunrs me a java.lang.Object. I wanted to know how do I compare this to a java.util.Date??
Map myMap = new HashMap();
myMap.put(java.util.Date, value);
Date dateToBeTested = new Date(myMap.getKey()); // I know this is deprecated.
Also, using SimpleDateFomat did not help me. The date format in the map is Sun Sep 07 23:59:59 2008 CDT & somehow SimpleDateFormat.parse does not recognize it. Can someone tell me what else can I do here?

pradeep_chanda wrote:
I have a HashMap which has java.util.Date objects as keys. I want to compare these dates with a constant date object. When I do a map.getKey() it retunrs me a java.lang.Object. I wanted to know how do I compare this to a java.util.Date??Cast it to a Date, but if you follow the Generics suggestion by ejp, this is not needed.
>
Map myMap = new HashMap();
myMap.put(java.util.Date, value);
Date dateToBeTested = new Date(myMap.getKey()); // I know this is deprecated.
Also, using SimpleDateFomat did not help me. The date format in the map is Sun Sep 07 23:59:59 2008 CDT & somehow SimpleDateFormat.parse does not recognize it. Can someone tell me what else can I do here?Dates do not have a format, a String representation of a Date, does, but a Date does not. Are you using Date objects as the keys or String objects?
Also, why do you need to compare them? If you simply need to find out whether a certain Date is used as a key, there are methods especially for that. If you need the sorted list of keys, then simply retrieve the key set and sort it.
What exactly is it that you are trying to accomplish?

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TIA bvd

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How to compare result from sql query with data writen in html input tag?

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from sql query with data
writen in html input tag?
I need to compare
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How to compare date which is greatest date

iam new to sql
how to compare date which date is greatest date with example
can i use to_char to compare date
SELECT eno, ename, GREATEST (TBLE.MAX1, TBLE.MAX2) recent_date "
               FROM (SELECT TBLA.eno, TBLA.ename, "
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in above query if any one of the date having null value then recent_date is showing 'null'
and also it showing wrong value
example
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Edited by: user9112274 on Aug 27, 2010 5:31 AM

Hi,
there are numerous ways to compare dates, i give you some examples:
with data_Sample as
(select to_date('01-jan-2001','dd-mon-yyyy') d1, to_date('01-mar-2002','dd-mon-yyyy') d2, to_date('03-feb-2002','dd-mon-yyyy') d3 from dual)
select greatest(d1,d2,d3) from data_Sample
GREATEST(D1,D2,D3)
3/1/2002
with data_Sample as
(select to_date('01-jan-2001','dd-mon-yyyy') d1 from dual union all
select to_date('01-mar-2002','dd-mon-yyyy')   from dual union all
select to_date('03-feb-2002','dd-mon-yyyy') from dual)
select max(d1) from data_Sample
MAX(D1)
3/1/2002
declare
d1 date :=to_date('01-jan-2001','dd-mon-yyyy');
d2 date :=to_date('01-jan-2001','dd-mon-yyyy');
begin
if d1>d2 then
dbms_output.PUT_LINE('d1 greater than d2');
else
dbms_output.PUT_LINE('d1 less or equql than d2');
end if;
end;
output:
d1 less or equal than d2now concerning your question:
>
can i use to_char to compare date
>
If you have date data types : don't convert them.
if you have no choice, use something like:
if to_char(d1,'YYYYMMDD') > to_char(d2,'YYYYMMDD') then
else
end if;Take care when you convert a date into a char format it becomes string comparison (with all it implies) (It's the reason why i've use an explicit mask format).

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hi sonam.
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here r the step to load transation data from a flat file.......
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(IF DATA TARGET IS ODS -
INCLUDE 0RECORDMODE IN COMMUNICATION STRUCTURE.)
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Hi,
In the sample provided by Oracle
http://www.oracle.com/technology/products/forms/htdocs/webutil/howto_ole.html
Note 247606.1 How to Copy Records From a Form Into Excel
It shown the methods of how to copy data from form to excel but is there any sample to provide the step on how to read the cell from excel into Form in 10g.

declare
args client_ole2.list_type;
application client_ole2.obj_type;
vworkbooks client_ole2.obj_type;
vdoc client_ole2.obj_type;
vworksheet client_ole2.obj_type;
vrange client_ole2.obj_type;
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vworkbooks := client_ole2.get_obj_property(application, 'Workbooks');
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vdoc :=client_ole2.INVOKE_OBJ(vworkbooks,'Open',args);
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HOW TO UPLOAD DATA FROM EXCEL TO INTERNALTABLE

HI,
HOW TO UPLOAD DATA FROM EXCEL TO INTERNALTABLE? & WITH EXAMPLE.

hi,
chk this, put the data into an excel file.
fields inside it are name and age.
sample excel sheet.
coloumn 1 is name and column 2 is age
name age
A 8
C 13
D 55
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data : record like db_name_age occurs 0 with header line.
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 v_start_row TYPE i VALUE '1', " starting row
 v_end_col TYPE i VALUE '2', " total columns
 v_end_row TYPE i VALUE '10'. "total no of record
FORM f_upload .
CLEAR : int_excel, int_excel[].
CALL FUNCTION 'ALSM_EXCEL_TO_INTERNAL_TABLE'
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 filename = wf_filename
 i_begin_col = v_start_col
 i_begin_row = v_start_row
 i_end_col = v_end_col
 i_end_row = v_end_row
 TABLES
 intern = int_excel
 EXCEPTIONS
 inconsistent_parameters = 1
 upload_ole = 2
 OTHERS = 3.
IF sy-subrc <> 0.
*Message is 'Unable to upload data from ' wf_filename.
 MESSAGE e169(zm050) WITH wf_filename.
ELSE.
 SORT int_excel BY row col.
 REFRESH : record.
 CLEAR : record.
 LOOP AT int_excel.
 CASE int_excel-col. "go thru each column.
 WHEN 1.
 record-name = int_excel-value.
 WHEN 2.
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 ENDCASE.
 AT END OF row.
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 CLEAR record.
 ENDAT.
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modfiy db_name_age from table record.
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TYPE-POOLS truxs.
types: begin of t_tab,
col1(5) type c,
col2(5) type c,
col3(5) type c,
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data : itab type standard table of t_tab,
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data ttab type tabname.
at selection-screen on value-request for p_file.
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PROGRAM_NAME = SYST-CPROG
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anver
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How to upload data from excel to SAP and options to be used

How to upload data from excel to SAP and options to be used
thank you,
Regards,
Jagrut Bharatkumar shukla

Hi Jagrut,
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chk the sample program mentioned below.
REPORT ZFTP .
DATA: BEGIN OF I_FILE OCCURS 0,
DATA(2000) TYPE C,
END OF I_FILE.
DATA: BEGIN OF I_FILE2 OCCURS 0,
DATA(2000) TYPE C,
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P_FILE2 TYPE STRING,
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AT SELECTION-SCREEN ON VALUE-REQUEST FOR P_FILEN.
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START-OF-SELECTION.
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tables
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APPEND I_FILE2.
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text
-->P_P_FILEN text
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rc =
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INV_WINSYS = 1
NO_BATCH = 2
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SELECTION_ERROR = 4
OTHERS = 5
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Regards,
Harini.S

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How to compare dates from a hashmap

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