Question

Choose the best data type for each of the following so that any reasonable value is accommodated but no memory storage is wasted. Give an example of a typical value that would be held by the variable, and explain why you chose the type you did.

a. the number of siblings you have

b. your final grade in this class

c. the population of Earth

d. the population of a U.S. county

e. the number of passengers on a bus

f. one player's score in a Scrabble game

g. one team's score in a Major League Baseball game

h. the year an historical event occurred

i. the number of legs on an animal

j. the price of an automobile

Answer 1

a : short as it will be less than 100
b : char as grades are in A-Z
c : double as it contains big number
d:double as it contains big number
e:short these are fixed and very less
f:short these are less

g:short this will below 1000
h:int it will be below 9999
i:short : max the value is 4
j:float : it is float