Week 4

Question 1

What is type casting?

Answer 1

Manually promoting / demoting

Question 2

What does the syntax of type casting (explicit)

Answer 2

static_cast(Value);

Question 3

What is overflow?

Answer 3

When a number can’t fit into its data type.

Question 4

What is underflow?

Answer 4

When floating point numbers get too close to zero.

Needs more digits of precision

Question 5

How to use a named constant?

Answer 5

Const double INTEREST_RATE = .129;

Question 6

what is a #define directive

Answer 6

a text replacement, not c++ code, no semi colon

Question 7

what is an example of multiple assignment?

Answer 7

a = b = c =12;

Question 8

What is combined assignment?

Answer 8

+=

Question 9

what is the set width manipulator syntax?

Answer 9

setw();

Question 10

what does the set width manipulator do?

Answer 10

Sets the minimum number of spaces to do, right justified

Question 11

What must you do to use setw(), fixed(), ect

Answer 11

include

Question 12

what does setprecision(n) do?

Answer 12

Sig figs when it is by its self, sets digits after decimal with fixed.

Question 13

what does showpoint do?

Answer 13

forces the decimal point

Question 14

what does fixed do?

Answer 14

prevent scientific notation