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Subgoals

Section 1.34 Expressions-WE11-P2

Subgoals for evaluating an assignment statement.

  1. Determine resultant data type of expression
  2. Update variable for pre operators based on side effect
  3. Solve arithmetic equation, operator precedence
  4. If = statement, is Left Hand Side (LHS) a variable? Check data type of copied value against data type of variable
  5. Update variable for post operators based on side effect

Subsection 1.34.1

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

Exercises Exercises

1.
Q80: lambda = alpha * Math.abs(theta);
What is the value of lambda?
2.
    Q81: gamma = Math.sqrt(25);
    Why is this statement invalid?
  • cannot assign a double to an int variable
  • gamma does not have a value
  • Math.sqrt is illegal
  • cannot assign an int to a double variable
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