Null Can Be Used

question 18

Multiple Choice

null can be used:

• A)to indicate a variable has no real value
• B)in a Boolean expression with ==
• C)as a placeholder
• D)all of the above

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Definitions:

Bacterial Infections

Diseases caused by the invasion and multiplication of bacteria in the body, leading to symptoms such as fever, inflammation, and tissue damage.

Catastrophe

A sudden and widespread disaster or calamity that causes great damage or suffering.

Immune System

The complex network of cells, tissues, and organs that work together to defend the body against harmful pathogens or diseases.

Arthritis

A group of painful and degenerative conditions marked by inflammation in the joints that causes stiffness and pain.