course material

1. Java programing | Electronic Engineering homework help
This homework assignment is due on Wednesday, September 13, 2017 at 12:00 PM (noon),
and will be accepted than 5:00 PM on the same day.On page 25 of Big Java: Late Objects,
complete the following Review Exercises:R1.7 What does this program print?public class
Test{ public static void main(String[] args) { System.out.println(“39 +
3”); System.out.println(39 + 3); }} R1.7 What does this program print?public class
Test{ public static void main(String[] args) { System.out.println(“39 +
3”); System.out.println(39 + 3); }} R1.9 What is the compile-time error in this
program?public class Test{ public static void main(String[]
args) { System.out.println(“Hello”, “World!”); }} R1.13 Write an algorithm to settle the
following question: A bank account starts out with $10,000. Interest is compounded
monthly at 6 percent per year (0.5 percent per month). Every month, $500 is withdrawn to
meet college expenses. After how many years is the account depleted?Use the Design Recipe
to develop this algorithm. R1.14 Consider the question in Exercise R1.13. Suppose the
numbers ($10,000, 6 percent, $500) were user selectable. Are there values for which the
algorithm you developed would not terminate? If so, change the algorithm to make sure it
always terminates. R1.15 In order to estimate the cost of painting a house, a painter needs
to know the surface area of the exterior. Develop an algorithm for computing that value.
Your inputs are the width, length, and height of the house, the number of windows and
doors, and their dimensions. (Assume the windows and doors have a uniform size.) R1.19
The ancient Babylonians had an algorithm for determining the square root of a number a.
Start with an initial guess of a / 2. Then find the average of your guess g and a / g. That’s
your next guess. Repeat until two consecutive guesses are close enough. Write pseudocode
for this algorithm.On pages 26-27 of Big Java: Late Objects, complete the following Practice
Exercises:E1.1 Write a program that prints a greeting of your choice, perhaps in a language
other than English. E1.4 Write a program that prints the balance of an account after the first,
second, and third year. The account has an initial balance of $1,000 and earns 5 percent
interest per year. E1.5 Write a program that displays your name inside a box on the
screen. Do your best to approximate lines with characters such as | – +. E1.6 Write a
program that prints your name in large letters, such
as* * ** **** **** * ** * * * * * * * * ****** * * **** **** *
** * ****** * * * * ** * * * * * * * *E1.7 Write a program that prints your name
in Morse code, like this:…. .- .-. .-. -.–Use a separate call to System.out.print for each
letter. E1.8 Write a program that prints a face similar to (but different from) the

2. following: ///// +”””””+ (| o o |) | ^ | | ‘-‘ | +—–+E1.10W rite a program that prints a
house that looks exactly like the following: + + + + + +—–+ | .-. | | | | | +-+-+-
+ E1.11 Write a program that prints an animal speaking a greeting, similar to (but different
from) the following: /_/ —–( ‘ ‘ ) / Hello( – ) < Junior | | | | Coder!/ E1.13 Write a
program that prints a poem of your choice. If you don’t have a favorite poem, search the
Internet for “Emily Dickinson” or “e e cummings” E1.15 Type in and run the following
program. Then modify it to show the message “Hello, your name!”.import
javax.swing.JOptionPane;public class DialogViewer{ public static void main(String[]
args) { JOptionPane.showMessageDialog(null, “Hello, World!”); }} E1.16 Type in and
run the following program. Then modify it to print “Hello, name!”, displaying the name that
the user typed in.import javax.swing.JOptionPane;public class DialogViewer{ public static
void main(String[] args) { String name = JOptionPane.showInputDialog(“What is your
name?”); System.out.println(name); }}E1.17 (OPTIONAL) Modify the program from
Exercise E1.16 so that the dialog continues with the message “My name is Hal! What would
you like me to do?” Discard the user’s input and display a message such asI’m sorry, Dave.
I’m afraid I can’t do that.Replace Dave with the name that was provided by the user.E1.18
Type in and run the following program. Then modify it to show a different greeting and
image.import java.net.URL;import javax.swing.ImageIcon;import
javax.swing.JOptionPane;public class Test{ public static void main(String[] args) throws
Exception { URL imageLocation = new
URL( “http://horstmann.com/java4everyone/duke.gif”); JOptionPane.showMessag
eDialog(null, “Hello”, “Title”, JOptionPane.PLAIN_MESSAGE, new
ImageIcon(imageLocation)); }}On pages 71-73 of Big Java: Late Objects, complete the
following Review Exercises:R2.1 Write declarations for storing the following quantities.
Choose between integers and floating-point numbers. Declare constants when
appropriate.a. The number of days per weekb. The number of days until the end of the
semesterc. The number of centimeters in an inchd. The height of the tallest person in your
class, in centimetersR2.2 What is the value of mystery after this sequence of statements?int
mystery = 1;mystery = 1 – 2 * mystery;mystery = mystery + 1;R2.3 What is wrong with the
following sequence of statements?int mystery = 1;mystery = mystery + 1;int mystery = 1 – 2
* mystery;R2.4 Write the following mathematical expressions in Java.R2.5 Write the
following Java expressions in mathematical notation.a. dm = m * (Math.sqrt(1 + v / c) /
Math.sqrt(1 – v / c) – 1);b. volume = Math.PI * r * r * h;c. volume = 4 * Math.PI * Math.pow(r,
3) / 3;d. z = Math.sqrt(x * x + y * y);R2.6 What are the values of the following expressions?
In each line, assume thatdouble x = 2.5;double y = -1.5;int m = 18;int n = 4;a. x + n * y – (x +
n) * yb. m / n + m % nc. 5 * x – n / 5d. 1 – (1 – (1 – (1 – (1 – n))))e.
Math.sqrt(Math.sqrt(n))R2.7 What are the values of the following expressions, assuming
that n and m have type int, n is 17, and m is 18?a. n / 10 + n % 10b. n % 2 + m % 2c. (m + n)
/ 2d. (m + n) / 2.0e. (int) (0.5 * (m + n))f. (int) Math.round(0.5 * (m + n))R2.8 What are the
values of the following expressions? In each line, assume thatString s = “Hello”;String t =
“World”;a. s.length() + t.length()b. s.substring(1, 2)c. s.substring(s.length() / 2, s.length())d.
s + te. t + sR2.11 Find at least five compile-time errors in the following program.public class
HasErrors{ public static void main(); { System.out.print(Please enter two

3. numbers:) x = in.readDouble; y = in.readDouble; System.out.printline(“The sum is ”
+ x + y); }}R2.12 Find three run-time errors in the following program.public class
HasErrors{ public static void main(String[] args) { int x = 0; int y = 0; Scanner in =
new Scanner(“System.in”); System.out.print(“Please enter an integer:”); x =
in.readInt(); System.out.print(“Please enter another integer: “); x =
in.readInt(); System.out.println(“The sum is ” + x + y); }}R2.13 Consider the following
code segment.double purchase = 19.93;double payment = 20.00;double change = payment –
purchase;System.out.println(change);The code segment prints the change as
0.07000000000000028. Explain why. Give a recommendation to improve the code so that
users will not be confused. R2.14 Explain the differences between 2, 2.0, ‘2’, “2”, and
“2.0”.R2.15 Explain what each of the following program segments computes.a. x = 2; y = x +
x;b. s = “2”; t = s + s;R2.18 Write pseudocode for a program that computes the first and last
digit of a number. For example, if the input is 23456, the program should print 2 and 6. Hint:
%, Math.log10. R2.19 Modify the pseudocode for the program in How To 2.1 so that the
program gives change in quarters, dimes, and nickels. You can assume that the price is a
multiple of 5 cents. To develop your pseudocode, first work with a couple of specific
values. R2.20 A cocktail shaker is composed of three cone sections.Using realistic values for
the radii and heights, compute the total volume, using the formula given in Self Check 25 for
a cone section. Then develop an algorithm that works for arbitrary dimensions. R2.21 You
are cutting off a piece of pie like this, where c is the length of the straight part (called the
chord length) and h is the height of the piece.There is an approximate formula for the area:
However, h is not so easy to measure, whereas the diameter d of a pie is usually well-
known. Calculate the area where the diameter of the pie is 12 inches and the chord length of
the segment is 10 inches. Generalize to an algorithm that yields the area for any diameter
and chord length. R2.25 For each of the following computations in Java, determine whether
the result is exact, an overflow, or a roundoff error.a. 2.0 – 1.1b. 1.0E6 * 1.0E6c. 65536 *
65536d. 1_000_000L * 1_000_000LR2.26 Write a program that prints the values3 * 1000 *
1000 * 10003.0 * 1000 * 1000 * 1000Explain the results. R2.27 This chapter contains a
number of recommendations regarding variables and constants that make programs easier
to read and maintain. Briefly summarize these recommendations. On pages 75-76 of Big
Java: Late Objects, complete the following Practice Exercises:E2.1 Write a program that
displays the dimensions of a letter-size (8.5 × 11 inches) sheet of paper in millimeters.
There are 25.4 millimeters per inch. Use constants and comments in your program. E2.2
Write a program that computes and displays the perimeter of a letter-size (8.5 × 11 inches)
sheet of paper and the length of its diagonal. E2.3 Write a program that reads a number and
displays the square, cube, and fourth power. Use the Math.pow method only for the fourth
power. E2.4 Write a program that prompts the user for two integers and then prints E2.5
Enhance the output of Exercise E2.4 so that the numbers are properly
aligned:Sum: 45Difference: -
5Product: 500Average: 22.50Distance: 5Maximum: 25Minimum: 20E2.
6 Write a program that prompts the user for a measurement in meters and then converts it
to miles, feet, and inches. E2.7 Write a program that prompts the user for a radius and then
prints The area and circumference of a circle with that radiusThe volume and surface area

4. of a sphere with that radius E2.8 Write a program that asks the user for the lengths of the
sides of a rectangle. Then print The area and perimeter of the rectangleThe length of the
diagonal (use the Pythagorean theorem) E2.9 Improve the program discussed in How To 2.1
to allow input of quarters in addition to bills. E2.10 Write a program that helps a person
decide whether to buy a hybrid car. Your program’s inputs should be: The cost of a new
carThe estimated miles driven per yearThe estimated gas priceThe efficiency in miles per
gallonThe estimated resale value after 5 yearsCompute the total cost of owning the car for
five years. (For simplicity, we will not take the cost of financing into account.) Obtain
realistic prices for a new and used hybrid and a comparable car from the Web. Run your
program twice, using today’s gas price and 15,000 miles per year. Include pseudocode and
the program runs with your assignment. E2.11 Write a program that asks the user to
input E2.14 Write a program that reads a number between 1,000 and 999,999 from the user
and prints it with a comma separating the thousands. Here is a sample dialog; the user input
is in color:Please enter an integer between 1000 and 999999: 2345623,456E2.16 Write a
program that reads in an integer and breaks it into a sequence of individual digits. For
example, the input 16384 is displayed as1 6 3 8 4You may assume that the input has no
more than five digits and is not negative. E2.17 Write a program that reads two times in
military format (0900, 1730) and prints the number of hours and minutes between the two
times. Here is a sample run. User input is in color.Please enter the first time: 0900Please
enter the second time: 17308 hours 30 minutesWhat Do I Hand In?Once you are done,
submit your answers as any one of:MS Word document (.docx or .doc file) Rich Text Format
document (.rtf file) PDF document Plain text document (.txt or .text file)