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The printf is for formatting and when we give %s it indicate the String need to format, the number indicate (15) starting point for printing string (##) and \n indicate for new line so that ## will start printing in a new Line and start from 15th space
for more details refer
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The printf is for formatting and when we give %s it indicate the String need to format, the number indicate (15) starting point for printing string (##) and \n indicate for new line so that ## will start printing in a new Line and start from 15th space for more details refer
*https://docs.oracle.com/javase/tutorial/java/data/numberformat.html *
it starts counting from 0 or 1 for the places