Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Chapter 1, Problem 14PE
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Write a program that reads from the user a character (*q' or 'c').
If the character is 'c', the program reads from the user the radius r of a circle and prints its area.
If the user enters 'q', the program asks the user to enter the length and width of a quadrilateral. We
assume the quadrilateral is either a square or rectangle. You should print if the quadrilateral is square
or rectangle.
Otherwise, it prints "Wrong character"
PS: Use the following formulas :
area of circle=3.14*r?
I
f.
A laborant in a laboratory does a number of antigen tests in one day. Write a program that
simulates the number of antigen tests done in a day in a laboratory, displays the number of
positives and negatives, and calculates the % of positives in one day. Your program needs
to first generate a random number that will show the number of tests done in a day. One
laboratory in a day cannot do more than 100 tests and less than 1 (they do at least one).
Then for each of the tests, your program needs to generate a random number to show
whether they are positive or negative. In order to write this program, you need to have the
following three functions used by the main function:
test result (void): This function generates a test result. It should randomly
return either one or zero. 1 means positive test result and 0 means negative test result.
float positive percentage (int,int) : This function takes the total number of
positives and the total number of tests and returns the % of positives.…
6. A palindrome is a number or text
phrase that reads the same
backwards or forwards. For example,
each of the following five-digit integers
is a palindrome: 12321, 55555, 45554
and 11611. Write a program that
reads a 5 digit integer and determines
whether it is a palindrome. Hint: One
way to do this is to use division (/) and
modulus (%) operators to separate the
number into individual digits.
Chapter 1 Solutions
Big Java Late Objects
Ch. 1.1 - What is required to play music on a computer?Ch. 1.1 - Why is a CD player less flexible than a computer?Ch. 1.1 - What does a computer user need to know about...Ch. 1.2 - Prob. 4SCCh. 1.2 - Which part of the computer carries out arithmetic...Ch. 1.2 - A modern smartphone is a computer, comparable to a...Ch. 1.3 - What are the two most important benefits of the...Ch. 1.3 - Prob. 8SCCh. 1.4 - Prob. 9SCCh. 1.4 - Prob. 10SC
Ch. 1.5 - How do you modify the HelloPrinter program to...Ch. 1.5 - How would you modify the HelloPrinter program to...Ch. 1.5 - Would the program continue to work if you replaced...Ch. 1.5 - What does the following set of statements print?...Ch. 1.5 - What do the following statements print?...Ch. 1.6 - Suppose you omit the "" characters around Hello,...Ch. 1.6 - Suppose you change println to Printline in the...Ch. 1.6 - Suppose you change main to hello in the...Ch. 1.6 - Prob. 19SCCh. 1.6 - Prob. 20SCCh. 1.7 - Prob. 21SCCh. 1.7 - Suppose your cell phone carrier charges you 29.95...Ch. 1.7 - Consider the following pseudocode for finding the...Ch. 1.7 - Suppose each photo in Self Check 23 had a price...Ch. 1.7 - Prob. 25SCCh. 1.7 - Prob. 26SCCh. 1 - Explain the difference between using a computer...Ch. 1 - Prob. 2RECh. 1 - Prob. 3RECh. 1 - Prob. 4RECh. 1 - Prob. 5RECh. 1 - Prob. 6RECh. 1 - What does this program print? public class Test {...Ch. 1 - What does this program print? Pay close attention...Ch. 1 - Prob. 9RECh. 1 - Write three versions of the HelloPrinter.java...Ch. 1 - How do you discover syntax errors? How do you...Ch. 1 - The cafeteria offers a discount card for sale that...Ch. 1 - Write an algorithm to settle the following...Ch. 1 - Consider the question in Exercise R1.13. Suppose...Ch. 1 - In order to estimate the cost of painting a house,...Ch. 1 - In How To 1.1, you made assumptions about the...Ch. 1 - Suppose you put your younger brother in charge of...Ch. 1 - Write pseudocode for an algorithm that describes...Ch. 1 - The ancient Babylonians had an algorithm for...Ch. 1 - Write a program that prints a greeting of your...Ch. 1 - Write a program that prints the sum of the first...Ch. 1 - Write a program that prints the product of the...Ch. 1 - Write a program that prints the balance of an...Ch. 1 - Write a program that displays your name inside a...Ch. 1 - Write a program that prints your name in large...Ch. 1 - Write a program that prints your name in Morse...Ch. 1 - Write a program that prints a face similar to (but...Ch. 1 - Write a program that prints an imitation of a Piet...Ch. 1 - Write a program that prints a house that looks...Ch. 1 - Write a program that prints an animal speaking a...Ch. 1 - Write a program that prints three items, such as...Ch. 1 - Write a program that prints a poem of your choice....Ch. 1 - Write a program that prints the United States...Ch. 1 - Type in and run the following program. Then modify...Ch. 1 - Type in and run the following program. Then modify...Ch. 1 - Modify the program from Exercise E1.16 so that the...Ch. 1 - Prob. 18PECh. 1 - Write a program that prints a two-column list of...Ch. 1 - In the United States there is no federal sales...Ch. 1 - To speak more than one language is a valuable...Ch. 1 - You want to decide whether you should drive your...Ch. 1 - You want to find out which fraction of your cars...Ch. 1 - The value of can be computed according to the...Ch. 1 - Imagine that you and a number of friends go to a...Ch. 1 - Write an algorithm to create a tile pattern...Ch. 1 - Write an algorithm that allows a robot to mow a...Ch. 1 - Consider a robot that is placed in a room. The...Ch. 1 - Consider a robot that has been placed in a maze....Ch. 1 - Suppose you received a loyalty promotion that lets...Ch. 1 - A television manufacturer advertises that a...Ch. 1 - Cameras today can correct red eye problems caused...
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