Chapter 2.3, Problem 8E

(For thought) Although you have concentrated on operations involving integer and floatingpoint numbers, C++ allows adding and subtracting characters and integers. (These operations are possible with characters because they’re integer data types and are stored by using integer codes.) Therefore, characters and integers can be mixed in arithmetic expressions. For example, if your computer uses the ASCII code, the expression $\text{'a' + 1 equals 'b' and 'z' – 1 equals 'y'}\text{. Similarly, 'A' + 1 is 'B' and 'Z' - 1 is 'Y'}\text{.}$ With this information as background, determine the character results of the following expressions. (Assume all characters are stored by using ASCII codes.)

$\begin{array}{l}a.\text{'}m\text{'}-5\hfill \\ b.\text{'}m\text{'}+5\hfill \\ c.\text{'}G\text{'}+6\hfill \\ d.\text{'}G\text{'}-6\hfill \\ e.\text{'}b\text{'}-\text{'}a\text{'}\hfill \\ f.\text{'}g\text{'}-\text{'}a\text{'}+1\hfill \\ g.\text{'}G\text{'}-\text{'}A\text{'}+1\hfill \end{array}$