EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 10, Problem 17RQ
Program Description Answer
A static method is called using the name of either a class or superclass of the class, a dot, and the name of the method.
Hence, the correct answer is option “D”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Create a class named Percentages whose main() method holds two double variables, and prompt the user for values. Pass both variables to a method named computePercent() that displays the two values and the value of the first number as a percentage of the second one. For example, if the numbers are 2.0 and 5.0, the method should display a statement similar to: 2.0 is 40 percent of 5.0. Then call the method a second time, passing the values in reverse order.
An example of the program is shown below:
Enter a double >> 3.7 Enter another double >> 12.3 3.7 is 30.081300813008127 percent of 12.3 12.3 is 332.43243243243245 percent of 3.7
Task 01: Create the Percentages class.
Task 02: The computePercent() method displays the percent of the first argument of the second argument.
Task 03: The Percentages program accepts 2 double values from the console and displays the percent of first value of the second value and vice versa.
Which of the following statements are true about static methods.?
Static methods do not need an object in a class to be invoked.
Math.sin(x) is an example of a static method.
Inside a class, a static method belonging to the class can be invoked by using its name.
Outside a class, a static method is invoked by using the name of the class - like Math,pow.
All of the above are true statements about static methods.
create a class named checkup with fields that you read a patient number, blood pressure figures (systolic or diastolic), and two cholesterol figures (ldl and hdl). include a method named computeratio() that divides ldl cholesterol by hdl cholesterol and displays the result. include an additional method named explainratio() that explains that hdl is knowns as “good cholesterol” and that a ratio of 3.5 or lower is considered optimum pseudo code
Chapter 10 Solutions
EBK JAVA PROGRAMMING
Knowledge Booster
Similar questions
- Modify the class named FormLetterWriter that includes two overloaded methods named displaySalutation(). The first method takes one String parameter that represents a customer’s last name, and it displays the salutation Dear Mr. or Ms. followed by the last name. The second method accepts two String parameters that represent a first and last name, and it displays the greeting Dear followed by the first name, a space, and the last name. After each salutation, display the rest of a short business letter using the displayLetter method: Thank you for your recent order. An example of the program is shown below: Dear Mr. or Ms. Kelly, Thank you for your recent order. Dear Christy Johnson, Thank you for your recent order.arrow_forwardModify the class named FormLetterWriter that includes two overloaded methods named displaySalutation(). The first method takes one String parameter that represents a customer’s last name, and it displays the salutation Dear Mr. or Ms. followed by the last name. The second method accepts two String parameters that represent a first and last name, and it displays the greeting Dear followed by the first name, a space, and the last name. After each salutation, display the rest of a short business letter using the displayLetter method: Thank you for your recent order. An example of the program is shown below: Dear Mr. or Ms. Kelly, Thank you for your recent order. Dear Christy Johnson, Thank you for your recent order. public class FormLetterWriter { public static void main(String[] args) { displaySalutation("Kelly"); displayLetter(); displaySalutation("Christy", "Johnson"); displayLetter(); } public static void displaySalutation(String…arrow_forwardCreate a class named Checkup with fields that hold a patient number, two blood pressure figures (systolic and diastolic), and two cholesterol figures (LDL and HDL). Include methods to get and set each of the fields. Include a method named computeRatio() that divides LDL cholesterol by HDL cholesterol and displays the result. Include an additional method named explainRatio() that explains that HDL is known as “good cholesterol” and that a ratio of 3.5 or lower is considered optimum. Save the class as CheckupType.cpp. Create a tester program named TestCheckup whose main() method declares four Checkup objects. Call a getData() method four times. Within the method, prompt a user for values for each field for a Checkup, and return a Checkup object to the main() method where it is assigned to one of main()’s Checkup objects. Then, in main(), pass each Checkup object in turn to a showValues()method that displays the data. Blood pressure values are usually displayed with a slash between the…arrow_forward
- create a class named checkup with fields that you read a patient number, blood pressure figures (systolic or diastolic), and two cholesterol figures (ldl and hdl). include a method named computeratio() that divides ldl cholesterol by hdl cholesterol and displays the result. include an additional method named explainratio() that explains that hdl is knowns as “good cholesterol” and that a ratio of 3.5 or lower is considered optimum java programarrow_forwardThis is java question: Create a class named Bottle, which contains the following attributes: isFull (boolean), drinkType (ex: water), fillLevel (max: 100). Then, create a method called drink, which takes an argument of how much liquid the user drinks. When the user calls drink, subtract the amount drank from the fillLevel and make sure that isFull is set to false. Lastly, create a constructor that initializes the object as a full bottle containing water.arrow_forwardjada please Create a class named Purchase. Each Purchase contains an invoice number, amountof sale and sales tax. Include getter and setter methods for each property.Write a method called InvoiceTotal to compute the total of invoice. Save this infile called Purchase.javaCreate another class with the following:In this class, create a Purchase Object after prompting the user for necessarydetails.(You need to figure out what to ask the user for).When you prompt the user for invoice number do not let the user proceed unlessthe invoice number is between 5 and 55.For sales amount do not let the user proceed if they enter a negativevalue. After instantiating a Purchase object, show all the properties ofthe invoice object.arrow_forward
- Create a class named Circle with fields named radius, diameter, and area. Include a constructor that sets the radius to 1 and calculates the other two values. Also include methods named setRadius()and getRadius(). The setRadius() method not only sets the radius but also calculates the other two values. (The diameter of a circle is twice the radius, and the area of a circle is pi multiplied by the square of the radius. Use the Math class PI constant for this calculation.) Save the class as Circle.java.arrow_forwarda. Carly's Catering provides meals for parties and special events. In Chapters 3 and 4, you created an Event class for the company. Now, make the following changes to the class: Currently, the class contains a field that holds the price for an Event. Now add another field that holds the price per guest, and add a public method to return its value. Currently, the class contains a constant for the price per guest. Replace that field with two fields—a lower price per guest that is $32, and a higher price per guest that is $35. Add a new method named isLargeEvent() that returns true if the number of guests is 50 or greater and otherwise returns false. Modify the method that sets the number of guests so that a large Event (more than 50 guests) uses the lower price per guest to set the new pricePerGuest field and calculate the total Event price. A small Event uses the higher price. Save the file as Event.java. b. In Chapter 4, you modified the EventDemo class to demonstrate two Event…arrow_forwardCreate a program named FindSquareRoot that finds the square root of a user’s input value. The Math class contains a static method named Sqrt() that accepts a double and returns the parameter’s square root. If the user’s entry cannot be converted to a double, display an appropriate message, and set the square root value to 0. Otherwise, test the input number’s value. If it is negative, throw a new ApplicationException to which you pass the message “Number can’t be negative.” and again set sqrt to 0. If the input value is a double and not negative, pass it to the Math.Sqrt() method, and display the returned valuearrow_forward
- Create a class named printing that will include a method called print details, that will print the customer invoice. In the printing class include another method called customer purchase report which will display the following information: All in Javaarrow_forwardSuppose you have a class named Candy imported and you instantiate an object named reeses. Also, suppose that the Candy class has a method named getFlavor, which requires no arguments. Type the line of code that would run the method getFlavor on the reeses object.arrow_forwardBy using Java programming Write a class called ”BankAccount” that has the following variables:• A variable with type String and its name ”acoountHolderName”.• A variable with type int and its name ”accountNum”.• A variable with type double and its name ”balance”.Create the following three methods:• A method called ”Withdraw” of type void takes a parameter of type double called amount. The method takesthe amount of money a customer wants to withdraw from their balance and deducts it from the balance. Themethod must check if there is enough money to withdraw.• A method called ”Deposit” of type void and takes parameter of type double called amount. The method addsthe amount of money to a customer’s balance.• (Bonus) Create a method called ”GenerateAccountNum” to generate a random number with nine digits andassign the variable ”accountNum”The variables and methods names are case-sensitive.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT