Java Programming
8th Edition
ISBN: 9781305981829
Author: Joyce Farrell
Publisher: Cengage Limited
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 2, Problem 5RQ
Program Description Answer
“shoeSize = 9;” is the valid assignment statement in java.
Hence, the correct answer is option “A”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
To determine if two variables of the same basic type have the same value in Java, we use the == operator
When we declare a variable in Java, we :
Give the variable a name
Specify the type of the variable
Optionally give the variable an initial value.
All of the above
Question 2: Ben number (In Java)Ben had difficulty coming out with an assignment question, then he created an odd number called Ben number, which is the sum of a Ben series. Let x be the starting number and y be the bout number, in the Ben series, the x should double the value when it is an even number. In contrast, the number should be subtracted by 1 when x is an odd number. Both x and y should be greater than 0.Example of a Ben series, Assume the x = 3, and y = 5, then the series should be [3, 2, 4, 8,16]. Then the Ben number should be 33 because of 3+2+4+18+16.Thus, given the method benNumber(m,n), for all m, n > 0benNumber(2,5) should return 62 because 2+4+8+16+32 = 62benNumber(3,8) should return 257 because 3+2+4+8+16+32+64+128 = 257benNumber(1,1) should return 1Note that you can only use recursion to solve Q1 and Q2, and you cannot use any loop. You are free to add helper methods, but you are not allowed to change the method header.
Chapter 2 Solutions
Java Programming
Ch. 2 - Prob. 1RQCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 20RQCh. 2 - Prob. 1PECh. 2 - Prob. 2PECh. 2 - Prob. 4PECh. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Prob. 8PECh. 2 - Prob. 9PECh. 2 - Prob. 10PECh. 2 - Prob. 11PECh. 2 - Prob. 12PECh. 2 - Prob. 1GZCh. 2 - Prob. 2GZCh. 2 - Prob. 1CPCh. 2 - Prob. 2CP
Knowledge Booster
Similar questions
- • FormulaEvaluator.java Requirements: Evaluate the following expression for any value of the variable x, and save the result in a variable of the type double. You must use the abs(), pow(), and sqrt() methods of the Math class to perform the calculation. You may use a single assignment statement with a somewhat large expression, or you may break the expression into multiple assignment statements. The latter may be easier to debug if you are not getting the correct result. 5x +3} ( √8x* — 6x²³ + 4x² + |20x+1) (9x³+7x² +5x+3) Next, determine the number of digits to the left and to the right of the decimal point in the result. [Hint: You can convert the double variable into a String variable using the static method Double.toString(result). Then, on this String variable use the indexOf() method from the String class to find the position of the decimal point (".") and use the length() method to find the length. Knowing the location of the decimal point and the length of the String, you…arrow_forwardCreate a simple illness Check-up Java program. This program must implement encapsulation and polymorphism. Example: System: Good day. What can we do for you? User: I am sick. System: These are the available services Pediatric Pulmonary Internal Medicine Simple consultation The program must implement encapsulation and polymorphism.arrow_forwardProgram must be in Java Body Mass Index (BMI) is one of the criteria that is used to calculate whether one is fit or not basing on a person’s height (m) and weight (kg). The criterion is very simple; if one’s BMI is 25 or greater, it signifies overweight. A BMI less or equal to 18.5 indicates underweight. Lastly, a BMI greater than 30 shows obesity.You have been requested to create a program that that helps the Namibian Defence Forces’ (NDF) Captain to calculates the BMI of a person (BMI = weight/height2) and also determine whether the person has also completed running 10 km in the required time. Men should complete 10km in less than 60 minutes for them to be accepted. Women should do that under 80 minutes. Both males and females are accepted if their BMI is less than 25 and greater than 18.5. For 2018 intake, there are already 6 males selected and 1 female. The values for gender, mass and weight are enter by user inputs BELLOW ARE THE EXPECTED OUTPUTS Test 1: TEST 01 --- Input…arrow_forward
- Program must be in Java Body Mass Index (BMI) is one of the criteria that is used to calculate whether one is fit or not basing on a person’s height (m) and weight (kg). The criterion is very simple; if one’s BMI is 25 or greater, it signifies overweight. A BMI less or equal to 18.5 indicates underweight. Lastly, a BMI greater than 30 shows obesity.You have been requested to create a program that that helps the Namibian Defence Forces’ (NDF) Captain to calculates the BMI of a person (BMI = weight/height2) and also determine whether the person has also completed running 10 km in the required time. Men should complete 10km in less than 60 minutes for them to be accepted. Women should do that under 80 minutes. Both males and females are accepted if their BMI is less than 25 and greater than 18.5. For 2018 intake, there are already 6 males selected and 1 female. The values for gender, mass and weight are enter by user inputsSample Run 1Welcome to NDF Captain's Selection…arrow_forward7) In Java, call-by-value is only used with: objects primitive types this all of the above Answer: 8) The parameter this refers to instance variables local variables global variables the calling object Answer: Pls answer these mcq's 9) When the parameters in a method have the same as instance variables you can differentiate them by using the _____ parameter. String hidden default this Answer:arrow_forwardAssignment1 In this assignment you have to write a java program Assignment1 that contains all three zeros of the calculates the following third degree polynomial: 23 = -1 The solutions must be determined using the Newton-Raphson method. Work with an absolute accuracy of ɛ =0.00001. It means |x+1- X,] > ɛ Make sure your output looks like the Example output ( Like here below ). The real part and imaginary part must be rounded to three decimal places. The order of the zero points are not important. This order may be different for you. Example Output: PS C:\ Users\ Sam\Documents\Homework\PR> java Assignment1 Zero point 1 is equal to : -1.0 Zero point 2 is equal to : 0.5 - 0.866i Zero point 3 is equal to : 0.5 +0.866i Example Output for: f(z)= z³ +1arrow_forward
- In C# create a calculator but make it for Fractions. Include a fraction class that overloads the +, -, *, and / operators.arrow_forward? ParameterMysteryExam1 ♡ Language/Type: Java parameters return The following console program uses parameters and produces five lines of output. What are they? public class ParameterMysteryExam1 { } public static void main(String[] args) { String x = "java"; String y = "tyler"; String z = "tv"; String rugby = "hamburger"; String java = "donnie"; } hamburger (x, y, z); hamburger (z, x, y); hamburger ("rugby", z, java); y = hamburger (y, rugby, "x"); hamburger (y, y, "java"); and " + x + ” like + y); System.out.println(z + public static String hamburger (String y, String z, String x) { return z; } 9 M 31 marrow_forward1. In a sample Java source code three variables ag1, age2 and age3 are declared as integers, where age3 stores the sum of age1 and age2. An object showAge is also defined in the code; write only a print statement to display the sum of age1 and age2 using the object 2. Write a simple program in Java to display the age of a father from the following statement: The sum of ages of two sons is 5 less than the age of their father 3. Write an executable source code in Java that receives two decimal numbers from a user and returns their average on a display screenarrow_forward
- The following declaration, program, and program segment has errors. Locate as many as you can. class Change { private: int pennies; int nickels; int dimes; int quarters; Change(){ pennies = nickels = dimes = quarters = 0; } Change(int p = 100, int n = 50, d = 50, q = 25); };void Change::Change(int p, int n, d, q) { pennies = p; nickels = n; dimes = d; quarters = q;}arrow_forwardThe following question deals with Object Oriented Programming in Python Pseudocode into a flowchart. The question: Design a class named Pet, which should have the following fields: name- holds name of the pet type-holds the type of animal the animal age-holds age of animal The Pet class should also have the following methods: setName: stores string value in the name field setType: stores string value in the type field setAge: stores integer value in age field getName: returns value of the name field getType: returns value of the type field getAge: returns value of the age field. Once you have created the class, design a program in flowchart form that creates an object of the class and prompts the user to enter the name, type, and age of his or her pet. This data should be stored in the object. Use the object's accessor methods to retrieve the pets name, type, and age and display this data on screen. Also, the class methods should each be illustrated as separate functions. The…arrow_forwardjava a. You want to create a Java main class. You create the source code file, declare the package, and write the class header. Now you must create the main method that starts the program. Write the entire method header, including the opening brace for the method. b. Assume that price is an integer variable whose value is the price (in US currency) in cents of an item. Write a statement that calculates the whole dollars in the amount and saves it in a new integer variable named dollars. Note: The Java style guide states that one space is used on either side of binary operators.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT