Programming Logic and Design, Introductory 7th Edition by Joyce Farrell

تمرين 3

If productCost and productPrice are numeric variables, and productName is a string variable, which of the following statements are valid assignments? If a statement is not valid, explain why not.

a. productCost = 100

b. productPrice = productCost

c. productPrice = productName

d. productPrice = "24.95"

e. 15.67 = productCost

f. productCost = $1,345.52

g. productCost = productPrice - 10

h. productName = "mouse pad"

i. productCost + 20 = productPrice

j. productName = 3-inch nails

k. productName = 43

l. productName = "44"

m. "99" = productName

n. productName = brush

o. battery = productName

p. productPrice = productPrice

q. productName = productCost

الخطوة 1 من18

Here, the numeric variables are “productCost” and “productPrice”, and string variable is “productName”.

a.

The numeric variable can hold the values of digits. So, the numeric value “100” is assigned to numeric variable of “productCost”.

Therefore, the assignment statement “productCost = 100” is .