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Subgoals

Section 2.24 Expressions-WE8-P1

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 2.24.1

Given
int  x = 4, y = 6;
boolean result;
What is the value of result after each of the following?

Exercises Exercises

1.
    Q52: result = x < y;
  • true
  • false
2.
    Q53: result = x + 2 < y;
  • true
  • false
3.
    Q54: result = x != y;
  • true
  • false
4.
    Q55: result = x + 3 >= y;
  • true
  • false
5.
    Q56: result = y == x;
  • true
  • false
6.
    Q57: result = y == x+2;
  • true
  • false
7.
    Q58: result = 7 == 7;
  • true
  • false
8.
    Q59: result = 13 < 100;
  • true
  • false
9.
    Q60: result = -17.32 != -17.32;
  • true
  • false
10.
    Q61: result = -3.0 == 0.0;
  • true
  • false
11.
    Q62: result = 13 <= 100;
  • true
  • false
12.
    Q63: result = -18 < -15;
  • true
  • false
13.
    Q64: result = 4.2 > 3.7;
  • true
  • false
14.
    Q65: result = 13 <= 13;
  • true
  • false
15.
    Q66: result = 0.012 > 0.013;
  • true
  • false
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