Print Product

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Write a static method printProduct that accepts a Scanner reading input from a file containing a series of integers and calculates their product, printing the result to an output PrintStream parameter. For example, if the input file numbers.txt contains:

1 6 2 3 5 4 

Then your method could be called in the following way:

Scanner input = new Scanner(new File(“numbers.txt”)); 
PrintStream output = new PrintStream(new File(“output.txt”)); 
printProduct(input, output); 

And it would calculate the product of all the numbers and output the following to output.txt:

1 * 6 * 2 * 3 * 5 * 4 = 720 

How could you use this method to print the result to the console instead of an output file?