STOCK MANAGEMENT
Stock Class have these details stock id (unique : string), stock name (string), company name(string) , price (double), closing date (Date) , quantity (int)
APPLICATION FUNCTIONALITY
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Add stock in application. Accepted all the stock details & inserted it in the DS Ensure no duplicate stock ids. Add a validation rule that stock closing date must be a future date. In case of invalid inputs , throw custom exception & handle it.
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View Stock by Company Name. input : company name Output is all the stocks published by that company.
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Purchase Stock. input : stock id , quantity In case of invalid stock id or insufficient available quantity , throw custom exception , with suitable error message. In case of success , update stock quantity suitably.
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Sell Stock. input : stock id , quantity In case of invalid stock id throw custom exception , with suitable error message. In case of success , update stock quantity suitably.
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Save and Exit (Serialization) save all stock details in a binary file (filename.ser), using serialization.