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Subgoals

Section 2.25 Assessment: Boolean Relational Operators

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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Exercises Exercises

    1.

    Q1: Given the following, what value is stored in variable answer?
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                    int x = 5;
                int y = 3;
                int z = 1;                
boolean answer;
answer = x <= z;
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    2.

    Q2: Given the following, what value is stored in variable answer?
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                    int x = 5;
                int y = 3;
                int z = 1;                
boolean answer;
answer = y >= z;
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    3.

    Q3: Given the following, what value is stored in variable answer?
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                    int x = 5;
                int y = 3;
                int z = 1;                
boolean answer;
answer = x > z + y;
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    4.

    Q4: Given the following, what value is stored in variable answer?
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                    int x = 5;
                int y = 3;
                int z = 1;                
boolean answer;
answer = z < y - z;
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    5.

    Q5: Given the following, what value is stored in variable answer?
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                    int x = 5;
                int y = 3;
                int z = 1;                
boolean answer;
answer = ((x * y) + (x * z)) != ((z * x) + (y * x));
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