Chapter 4: Review Questions
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     1. The shorthand expression for x = x + 10 is:
           
        a) x += 10;
        b) +x = 10;
        c) x =+ 10;
        d) x = 10+;
    
     2. The result of the following arithmetic expression is?
                  
        y = 6 * 4 % 3 * 5;
           
        a) 0
        b) 9
        c) 30
        d) 40
    
     3. What value does the computer give to the following
        expression if x is -4?
           
        ((x <= 5) && (x != 0) && (x >= -5))
           
        a) 0
        b) 1
        c) 2
        d) 3
    
     4. What is the value of  **sum** after the following     expression?
    
        sum = 5 + 3 * 4 - 1 % 3;
    
        sum = __________
    
     5. True or False
    
    ___ a) i + j * l - k is evaluated as (i + (j * l )) - k
    
    ___ b) Logical operators evaluate left to right only if 
           there is no higher precedence operator in the 
           expression.
    
    ___ c) 10 % 3 yields a result of 3.
    
    ___ d) A side effect occurs when the same data item is used 
           twice in an expression and changes value during at 
           least one of the uses.
    
     6. Evaluate the following expressions that use the 
        arithmetic operators where i = 10, j = 2, and k = 3.
    
        Expression                         Result
        ---------------------------------  --------------------
        i - j * k                           
    
        i - i / j                           
    
        k % i + j                           
    
        i % 2 * k                           
    
        i + j * k - i / j                    
    
     7. Evaluate the following logical expressions where 
        i = 10, j = 2, and k = 3.
    
        Expression                         Result
        ---------------------------------  --------------------
        i - 2 * (j + k ) || i                  
    
        i - 2 * (j + k ) && i                    
    
        j = i || k                             
    
        j = i || k || j                        
    
        j - k || j && k                        
    
     8. Identify what is wrong with the following expressions 
        where i = 10, j = 2, and k = 3.
    
        Expression                         Result
        ---------------------------------  --------------------
        i ^^ j                                                    
    
        i =+ j                              
    
        ++i = j + k--                       
    
        ( i || j ) = k - j                                
    
     9. The expression,
    
             i = (k = x * y ) + (q ? r : s );
    
        is equivalent to 
    
        a) i = x * y + r;
           k = s;
    
        b) q ? r : s;
           k = x * y ;
           i = k + q;
    
        c) k = x * y;
           i = k + (q ? r : s);
    
        d) none of the above
    
    10. What is the resulting type of the expression
    
        (int)q = (int)k - l + (char)m;
    
        given that k is float, l is float and m is int
    
        a. char
        b. float
        c. int
        d. long int