Question: The invoice-printing program is somewhat unrealistic because the formatting of the LineItem objects wont lead to good visual results when the prices and quantities have

The invoice-printing program is somewhat unrealistic because the formatting of the LineItem objects won’t lead to good visual results when the prices and quantities have varying numbers of digits. Enhance the format method in two ways: Accept an int[] array of column widths as an argument. Use the NumberFormat class to format the currency values.

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