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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. 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.
  5. Update variable for post operators based on side effect

Subsection 1.34.1

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

Exercises Exercises

1.

2.

Q81: gamma = Math.sqrt(25);
Why is this statement invalid?
  • cannot assign a double to an int variable
  • Correct
  • gamma does not have a value
  • Incorrect
  • Math.sqrt is illegal
  • Incorrect
  • cannot assign an int to a double variable
  • Incorrect
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