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Section 1.28 Assessment: Boolean Logical Operators

Subsection 1.28.1 Subgoals 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)

Exercises 1.28.2 Exercises

1.

    Q1: Given the following, what value is stored in variable answer?
    int x = 5, y = 3, z = 1;
    boolean answer;
    answer = (x < y) && (z < y);
  • true
  • false

2.

    Q2: Given the following, what value is stored in variable answer?
    int x = 5, y = 3, z = 1;
    boolean answer;
    answer = (x < y) || (z < y);
  • true
  • false

3.

    Q3: Given the following, what value is stored in variable answer?
    int x = 5, y = 3, z = 1;
    boolean answer;
    answer = (x <= 5) && (y >= 2);
  • true
  • false

4.

    Q4: Given the following, what value is stored in variable answer?
    int x = 5, y = 3, z = 1;
    boolean answer;
    answer = (y == z) || (z == x);
  • true
  • false

5.

    Q5: Given the following, what value is stored in variable answer?
    int x = 5, y = 3, z = 1;
    boolean answer;
    answer = (x <= 3) || ((z <= y) && (z == 1));
  • true
  • false
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