Chapter 2.6, Problem 2.9CP

1. A)

Program Plan Intro

Data types:

The variables use data-type during their declaration.

• The data-type is used to determine the size of memory allocated. Here, the compiler allots the memory.
• All data-type needs different size of memory.

Some of the data-types are:

• Integer
• Boolean
• Character
• Double
• Floating point

From the table 2-6:

Variable to hold numbers in the range from 32 to 6,000

From the table 2-6, “short” or “unsigned short” data-type hold numbers in the range from 32 to 6,000.

1. B)

Program Plan Intro

Data types:

The variables use data-type during their declaration.

• The data-type is used to determine the size of memory allocated. Here, the compiler allots the memory.
• All data-type needs different size of memory.

Some of the data-types are:

• Integer
• Boolean
• Character
• Double
• Floating point

From the table 2-6:

Variable to hold numbers in the range from 240,000 to 140,000

From the table 2-6, “int” data-type hold numbers in the range from 240,000 to 140,000.

1. C)

Program Plan Intro

Data types:

The variables use data-type during their declaration.

• The data-type is used to determine the size of memory allocated. Here, the compiler allots the memory.
• All data-type needs different size of memory.

Some of the data-types are:

• Integer
• Boolean
• Character
• Double
• Floating point

From the table 2-6:

Literal which uses more memory

From the given literal “20” and “20L”; both the literals uses same amount of memory because both the “int” and “long int” data-types size are 4 bytes.