Concept explainers
It is difficult to make a budget that spans several years, because prices are not stable. If your company needs 200 pencils per year, you cannot simply use this year's price as the cost of pencils two years from now. Because of inflation, the cost is likely to be higher than it is today. Write a
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Absolute Java (6th Edition)
Additional Engineering Textbook Solutions
Starting Out with C++: Early Objects (9th Edition)
Introduction To Programming Using Visual Basic (11th Edition)
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Computer Science: An Overview (12th Edition)
Starting Out With Visual Basic (7th Edition)
Java How To Program (Early Objects)
- In various applications, you are often asked to compute the mean and standard deviation of data. The mean is simply the average of the numbers. The standard deviation is a statistic that tells you how tightly all the various data are clustered around the mean in a set of data. For example, what is the average age of the students in a class? How close are the ages? If all the students are the same age, the deviation is 0. Write a program that prompts the user to enter any number of values into a double array, and then calculates and displays the mean and standard deviations of these numbers using the following formulas: (z - mean) z+z3+ *** +zn deviation = mean = n-1 Required Methods You must write your program so that the following methods are defined/implemented and used (called): • /* Compute the deviation of double values */ public static double deviation (double[] x) • /* Compute the mean of an array of double values */ public static double mean (double[] x) Sample Run (user input…arrow_forwardWrite a program that calculates the change due a customer by denomination; that is, how many pennies, nickels, dimes, etc. are needed in change. The input is to be the purchase price and the size of the bill tendered by the customer ($100, $50, $20, $10, $5, $1)arrow_forwardWrite a program that computes the rent in five years and the total rent for one year starting five years from nowarrow_forward
- Write a program that will read an executive's job number, level number, and basic pay and then compute the net salary after withholding income tax. Problem analysis: Gross salary = basic pay + house rent allowance + perks Net salary = Gross salary - income tax. The computation of perks depends on the level, while the income tax depends on the gross salary. The major steps are: 1. Read data. 2. Decide level number and calculate perks. 3. Calculate gross salary. 4. Calculate income tax. 5. Compute net salary. 6. Print the results. Program: A program and the results of the test data are given in statement should be an executable statement. That is, the label stop: cannot be the last line. Fig. 5.15. Note that the lastarrow_forwardwrite a program. There are three seating categories at a stadium. For a softball game, Class A seats cost $15, Class B seats cost $12, and Class C seats cost $9. Write a program that asks how many tickets for each class of seats were sold, then displays the amount of income generated from ticket sales. Format your dollar amount in fixed-point notation, with two decimal places of precision, and be sure the decimal point is always displayed.arrow_forwardYou found an exciting summer job for five weeks. It pays a per hour rate (which will be input to the program), and you will work the same number of hours each week (also input). Suppose that the total tax you pay on your summer job income is 14%. After paying the taxes, you spend 10% of your net (after tax) income to buy new clothes, accessories, and school supplies. After subtracting those items from your budget, you use 25% of the remaining money buy savings bonds. In addition, your parents buy additional savings bonds for you at 50% of the amount that you buy. Write a program that prompts the user to enter the pay rate per hour and the number of hours you will work each week. The program then outputs the following:• Your income before and after taxes for your summer job.• The money you spend on clothes, accessories, and supplies.• The money you spend to buy savings bonds.• The money your parents spend to buy additional savings bonds for you.Your input for this program should be only…arrow_forward
- Write a program that computes how much a customer has to pay after purchasing two items. Make the lower-priced item half price. If the two items have identical prices, you can make one or the other half price. The price is calculated according to the following rules:• Buy one get one half off promotion: the lower price item is half price.• If the customer is club card member, additional 10% off.• Tax is added. Inputs to the program include:• Two items’ prices• Have club card or not (User enters ‘Y’ or ‘y’ for “yes”; ‘N’ or ‘n’ for “no”)• Tax rate (User enters the percentage as a number; for example, they enter8.25 if the tax rate is 8.25%) Program displays:• Base price - the price before the discounts and taxes• Price after discounts - the price after the buy one get one half off promotionand the member’s discount, if applicable• Total price – the amount of money the customer has to pay (after tax)printed with the precision of 2 decimal digits. Hint: In order to print a number in a…arrow_forwardSuppose you have an investment plan where you invest a certain fixed amount every year. Modify futval.py to compute the total accumulation of your investment. The inputs to the program will be the amount to invest each year, the interest rate, and the number of years for the investment. Please step by steparrow_forwardYour team was asked to program a self-driving car that reaches its destination with minimum travel time. Write an algorithm for this car to choose from two possible road trips. You will calculate the travel time of each trip based on the car current speed and the distance to the target destination. Assume that both distances and car speed are given. Answer:arrow_forward
- Write a program to find out the grade of a student based on the marks obtained in three subjects. The grade is calculated as: If average is 80 or greater than 80, grade is ‘A’. If average is less than 80 and greater then 50, grade is ‘B’. If average is less than 50 and greater then 33, grade is ‘C’. If average is less than 33, grade is ‘F’arrow_forwardSuppose you are a computer salesman and your income depend on the total sales and commissions earned for the computers that you sell. Commission rates vary depending on how many units you sold (see chart below). Your income equals to the total sales plus the commission where the commission equals to total sales times the commission rate. That is, commission = total sales * commission rate and income = total sales + commission. Total Sales Commission rate % Less than 200 sold 8% Greater or equal to 200 sold 10% Greater than to 400 sold 12% 1. Provide the user the commission rate list above. 2. After displaying the list, prompt the user to input the total sales. 3. Display the total income. Input: The input to your program will be from the keyboard (using Scanner). Output: The output of your program should be to the screen and include the correct answers. Run: Run it three times to be sure all possible values of the if logic works correctly.arrow_forwardYou are asked to write a program for a company that allows the manager to enter the salaries of 8 employees. The program should then output the number of salaries that are greater than or equal 2000 and the number of salaries that are less than 2000 in a chart style. Your program should be well designed and clear. Sample run Enter Salary for employee 1: 1500 Enter Salary for employee 2: 2200 Enter Salary for employee 3: 1950 Enter Salary for employee 4: 1400 Enter Salary for employee 5: 2600 Enter Salary for employee 6: 2450 Enter Salary for employee 7: 1200 Enter Salary for employee 8: 1230 3 salaries greater than or equal 2000: $$S 5 salaries less than 2000: $$$$Sarrow_forward
- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning