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Subgoals

Section 2.8 Expressions-WE3-P1

Subgoals for evaluating an assignment statement.

  1. Determine resultant data type of expression
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  2. Update variable for pre operators based on side effect
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  3. Solve arithmetic equation, operator precedence
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  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.
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  5. Update variable for post operators based on side effect
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Subsection 2.8.1

Given
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int alpha = 2;
int beta = 1;
int delta = 4;
int eta, gamma;
double omega = 2.5;
double theta = -1.3;
double kappa = 3.0;
double lambda, rho;

Exercises Exercises

1.
Q17: lambda = beta * theta;
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  • valid
  • Correct
  • invalid
  • Incorrect
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2.
Q18: eta = alpha * kappa;
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  • valid
  • Incorrect
  • invalid
  • Correct
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3.
Q19: alpha = beta + delta;
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  • valid
  • Correct
  • invalid
  • Incorrect
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4.
Q20: beta = beta * alpha;
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  • valid
  • Correct
  • invalid
  • Incorrect
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