1.
Q6: alpha = beta;
Section 1.3 Expressions-WE1-P2
Subsection 1.3.1 Subgoals for evaluating an assignment statement
- Determine resultant data type of expression
- Update variable for pre-increment or pre-decrement operators (side effect)
- Evaluate arithmetic expression according to operator precedence
- If an assignment statement (=), is Left Hand Side (LHS) a variable? Check data type of value against data type of variable.
- Update variable for post-increment or post-decrement operators (side effect)
For the assignment statements below, either give the new value of the assigned variable, or enter “invalid” if the statement would result in a compiler error or using an undefined value. Each problem is independent of the others (e.g. Question 2 does not depend on Question 1, only the “Given” code).
Subsection 1.3.2 Expressions-WE1-P2
Given
int alpha, beta = 1, gamma;
double omega = 2.5, theta, lambda;
Exercises Exercises
2.
- cannot assign a double to an int variable
- lambda does not have a value
- omega does not have a value
- cannot assign an int to a double variable
Q7: alpha = omega;
3.
Q8: theta = 22;
4.
Q9: omega = beta;
5.
- cannot assign a double to an int variable
- lambda does not have a value
- theta does not have a value
- cannot assign an int to a double variable
Q10: theta = lambda;
Why is this statement invalid?
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