Date 04/26/2010 COMP1013 STUDY QUESTIONS AND ANSWERS 1. True or False? An example of a logical (Boolean) expression is an arithmetic expression followed by a relational operator followed by an arithmetic expression. 2. True or False? Boolean variables cannot store the result of a comparison of two variables. 3. True or False? Syntactically, the only expressions that can be assigned to Boolean variables are the literal values true and false. 4. True or False? If ch1 contains the value 'C' and ch2 contains the value 'K', the value of the C++ expression ch1 <= ch2 is true. 5. True or False? If P and Q are logical expressions, the expression P AND Q is TRUE if either P or Q is TRUE or both are TRUE. 6. True or False? The expression !(n < 5) is equivalent to the expression n > 5.
COMP1013 STUDY QUESTIONS AND ANSWERS1.True or False? An example
of a logical (Boolean) expression is an arithmetic expression
followed by a relational operator followed by an arithmetic
expression.
2.True or False? Boolean variables cannot store the result of a
comparison of two variables.
3.True or False? Syntactically, the only expressions that can be
assigned to Boolean variables are the literal values true and
false.
4.True or False? If ch1 contains the value 'C' and ch2 contains
the value 'K', the value of the C++ expression
ch1 5.
7.True or False? To test whether someInt equals 25 or 30, the
C++ expression
someInt == 25 || 30
has the correct semantics but produces a syntax (compile-time)
error.
8.True or False? According to DeMorgan's Law, the expression
!(x t)
is equivalent to
x t
9.True or False? The statementif (grade == 'A' || grade == 'B'
|| grade == 'C')
