Expressions and If Statements Worksheet

1. Given the following algebraic expressions, convert each to the equivalent correct Java expression.

        a.  b - 4ac
   
        b.  x(y + z)
   
        c.       1
            ------------
            x  +  x  * 3
   
        d.  a  +  b
            -------
            c  -  d
   

2. What is the output of each of the following statements? Assume the following declarations: int a=10, b=5, c=8, temp=0;

        1.  if (a <= b)
               b = a;
            System.out.println(a + "  " + b);
   
        2.  if (a <= b) {
               b = a;
               System.out.println(a + "  " + b);
            }
   
        3.  if (a > b)
               temp = a;
            a = b;
            b = temp;
            System.out.println(a + " " + b);
   
        4.  if (a > b) {
               temp = a;
               a = b;
               b = temp;
               System.out.println(a + "  " + b);
            }
   

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