Why were the innermost set of parentheses used in the statement:

    System.out.println("The original : " + (quotient*3 + remainder) );

A good answer might be:

Without the parentheses, Java would take the first + to mean "convert quotient*3 to characters and append them to the string". Then it would take the second plus to mean "convert remainder to characters and append them to the string. The arithmetical addition would not be done.

The integer division operator   /   and the remainder operator   %   take an integer apart.

  theInteger / divisor   ---> quotient

  theInteger % divisor   ---> remainder

The original integer can be put back together again:

  quotient * divisor + remainder ---> theInteger

In many calculations, it is convenient to do everything with integers, so both   /   and  %   are needed.

QUESTION 12:

If you exchange 372 pennies for dollar bills, how many bills do you get? How many pennies are left over?