What describes an opaque expression?

What describes an opaque expression?

• A. A formal language expression in languages like C#, Java, or Python
• B. A verbal description without syntax
• C. A graphical diagram
• D. A pseudocode snippet

Answer: (A)

An opaque expression is best described as a formal language expression written in a real programming language like C#, Java, or Python. Such an expression uses the exact syntax and operators defined by the language, so a compiler or interpreter can parse and evaluate it without needing any extra interpretation. This makes it precise and unambiguous for the machine, unlike descriptions in natural language, diagrams, or even pseudocode, which convey logic but aren't executable code with strict syntax.

An opaque expression is best described as a formal language expression written in a real programming language like C#, Java, or Python. Such an expression uses the exact syntax and operators defined by the language, so a compiler or interpreter can parse and evaluate it without needing any extra interpretation. This makes it precise and unambiguous for the machine, unlike descriptions in natural language, diagrams, or even pseudocode, which convey logic but aren't executable code with strict syntax.