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Section 2.6 Expressions-WE2-P2
Subgoals for evaluating an assignment statement.
Determine resultant data type of expression
Update variable for pre operators based on side effect
Solve arithmetic equation, operator precedence
Is the Left Hand Side (LHS) of the assignment statement a variable? Check the data type of the value on right hand side (RHS) against data type of LHS variable.
Update variable for post operators based on side effect
Subsection 2.6.1
int alpha = 2;
int beta = 1;
int delta = 3;
int gamma;
final int eta = 10;
double omega = 2.5;
double theta = -1.3;
double kappa = 3.0;
double lambda, rho;
Exercises Exercises
1.
Q14: gamma = beta + alpha;
What is the value of gamma?
2.
What is the value of rho?
3.
Why is this statement invalid?
cannot assign a double to an int variable
Incorrect
eta does not have a value
Incorrect
eta is declared as final meaning that its value cannot be changed
Correct
cannot assign an int to a double variable
Incorrect
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