Programatically Creating a SDO GEOMETRY Object and Finding its Centroid

Dear Gurus,
I have the following requirement.
List of Lat Long pairs will be loaded from a text file. Ex: List<String> list = new ArrayList<String>(); //Here String is lat value,long value_
Each list contains lat lon pairs of a polygon.
Similarly we have n number of lists.From each list, using the lat long pairs i need to find out the centroid. Can you please suggest me the best way of doing it.
** Note : we don't have any DB operations. Everything needs to be done using Java API.
Thanks & Regards,
Kiran Konjeti

This is more a mathematical question
This should be the solution http://local.wasp.uwa.edu.au/~pbourke/geometry/polyarea/
Timo

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SDO_GEOMETRY(2002, 2958, NULL, SDO_ELEM_INFO_ARRAY(1, 2, 1), SDO_ORDINATE_ARRAY(
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SDO_GEOMETRY(2002, 2958, NULL, SDO_ELEM_INFO_ARRAY(1, 2, 1), SDO_ORDINATE_ARRAY(
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595925.144, 4839146.42, 596002.765, 4839128.11, 596007.989, 4839126.85, 596013.5
22, 4839123.09, 596056.926, 4839089.74, 596100.769, 4839065.62, 596106.694, 4839
063.81, 596110.438, 4839064.27, 596115.548, 4839066.47, 596181.122, 4839135.22,
596183.623, 4839140.59, 596183.706, 4839145.03, 596183.319, 4839148.15, 596181.1
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Hi Rose
If you take a look at the error message, you will find a line there that starts with ORA-13200
ORA-13200: Internal error RowID:AAANZE/AAFAAALFaAAP
This points to the ROW containing the geometry that triggers this error (described in the error message).
So if you could post the geometry of that specific row that might help. Use the following sql statement:
Select geometry from YOUR_TABLE_NAME WHERE ROWID = 'AAANZE/AAFAAALFaAAP';
tx
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Programatically Creating a SDO GEOMETRY Object and Finding its Centroid

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