7.16 Write a script that asks the user to enter two numbers, obtains the two
numbers from the user and outputs XHTML text that displays the sum, product,
difference and quotient of the two numbers. Use the techniques shown in Fig.
7.6
Answer
7.17 Write a script that asks the user to enter two integers, obtains the number
from the user and outputs XHTML text that displays the larger number followed
by the words "is larger" in an information message dialog. If the
numbers are equal, output XHTML text that displays the message "These numbers
are equal." Use the techniques shown in Fig. 7.15.
Answer
7.18 Write a script that inputs three integers from the user and displays the
sum, average, product, smallest and largest of the numbers in an alert
dialog.
Answer
7.19 Write a script that inputs from the user the radius of a circle and outputs
XHTML text that displays the circle's diameter, circumference and area. Use
the constant value of 3.14159 for π. Use the GUI techniques
shown in Fig. 7.6. [Note: You may also use the predefined constant Math.PI for
the value of π. This constant is more precise than the value 3.14159. The Math
object is defined by JavaScript and provides many common mathematical capabilities.]
Use the following formulas (r is the radius): diameter=2r, circumference=2πr,
area=πr2.
Answer
7.26 Write a script that reads five integers and determines and outputs XHTML
text that displays the largest integer and the smallest integer in the group.
Use only the programming techniques you learned in this chapter.
Answer
7.27 Write a script that reads an integer and determines and outputs XHTML
text that displays whether it is odd or even. [Hint: Use the modulus operator.
An even number is a multiple of 2. Any multiple of two leaves a remainder of
zero when divided by 2.]
Answer
7.28 Write a script that reads in two integers and determines and outputs XHTML
text that displays whether the first is a multiple of the second.
Answer
7.29 Write a script that inputs five numbers and determines and outputs XHTML
text that displays the number of negative numbers input, the number of positive
numbers input and the number of zeros input.
Answer