What Is the Correct Way to Invoke Methods on Variables

question 1

Multiple Choice

What is the correct way to invoke methods on variables in Java that are strings?

• A)Methods can only be invoked on string constants, not on variables.
• B)For each method there is a special operator that must be used.
• C)There are no methods available in Java for string variables.
• D)Invoke them using the variable name and the dot (.) notation.

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Definitions:

Linoleic Acid

A polyunsaturated omega-6 fatty acid, essential for human health, found in many vegetable oils.

Stearic Acid

A saturated fatty acid with the formula C18H36O2, found in various animal and vegetable fats, and used in making soaps and cosmetics.

Straight-Chain

Linear arrangements of atoms within a molecule without any branching.

C=C Double Bonds

Chemical bonds where two carbon atoms share two pairs of electrons, forming the basis of alkenes in organic chemistry.