![]() They can later make use of their prior conversions in this manner. The ability for users to save recent conversions to a file or database can be added to the converter in order to make it more user-friendly. This data can be kept in an array list or hash map data structure. Give the user a list of supported currencies to choose from. ![]() Deliver to the user clear error messages.ĭisplay the converted amount, the chosen currencies, and the exchange rate used after the conversion is complete. Implement error management to handle circumstances like API errors, network problems, or incorrect user input in an elegant manner. Verify that the input contains the proper currency codes and numeric values, and handle edge cases as necessary.
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