## Section1.33Expressions-WE11-P1

### Subsection1.33.1Subgoals for evaluating an assignment statement

1. Determine resultant data type of expression

2. Update variable for pre-increment or pre-decrement operators (side effect)

3. Evaluate arithmetic expression according to operator precedence

4. If an assignment statement (=), is Left Hand Side (LHS) a variable? Check data type of value against data type of variable.

5. Update variable for post-increment or post-decrement operators (side effect)

For all given problems below indicate if the code is valid or invalid. Each problem is independent of the others (e.g. Question 2 does not depend on Question 1, only the “Given” code).

### Subsection1.33.2Expressions-WE11-P1

Given

int alpha = 2, beta = 1, delta = 3, eta, gamma;
double omega = 2.5, theta = -1.3, kappa = 3.0, lambda, rho;


#### ExercisesExercises

##### 1.

Q78: lambda = alpha * Math.abs(theta);

• valid

• invalid

##### 2.

Q79: gamma = Math.sqrt(25);

• valid

• invalid