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Chapter 2: Problem 15

Which of the following are not valid assignment statements? (Circle all that apply.) A) total = 9; B) 72 = amount; C) profit = 129 D) letter = 'W';

Short Answer

Expert verified
Answer: Statements B and C are not valid assignment statements.

Step by step solution

01

Statement A: total = 9;

This statement has a variable "total" being assigned the value 9. The syntax is correct, and the value is appropriate for the variable. Therefore, statement A is a valid assignment statement.
02

Statement B: 72 = amount;

In this statement, number 72 is incorrectly being assigned the variable "amount." The assignment operation should be the opposite, where the variable "amount" is assigned the value 72. Since the assignment operation is incorrect, statement B is not a valid assignment statement.
03

Statement C: profit = 129

This statement has a variable "profit" being assigned the value 129. However, it lacks a semicolon at the end. Although this might work in some programming languages, it's generally considered a syntax error. Yet, since the assignment operation seems to be correct, we could assume that with a semicolon, this would be a valid assignment statement. So the issue here is the missing semicolon.
04

Statement D: letter = 'W';

In this statement, variable "letter" is being assigned the value 'W' which is a single character enclosed in single quotes. The syntax is correct, and the value is appropriate for the variable. Therefore, statement D is a valid assignment statement. In conclusion, the statements that are not valid assignment statements are: - Statement B: 72 = amount; - Statement C: profit = 129 (missing a semicolon)

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