JavaCode a program that outputs miles/gallon and gas dollars/gallon. 20: LAB: Driving costszyBooks catalog Help/FADriving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as input, and output the gas cost for20 miles, 75 miles, and 500 miles.Output each floating-point value with two digits after the decimal point, which can be achieved as follows:System.out.printf("%.2f", yourValue);The output ends with a newline.Ex: If the input is:20.0 3.1599the output is:3.16 11.85 79.00Note: Real per-mile cost would also include maintenance and depreciation.LAB2:20.1: LAB: Driving costsACTIVITYLabProgram.java1 import java.util.Scanner;23 public class LabProgram {4Type here to searchSpublic static void main(String[] args) {74000/10Load defauit template.80°F4X ENG Note: Real per-mile cost would also include maintenance and depreciation.107614.2611836.qx3zgy?LAB2.20.1: LAB: Driving costsACTIVITYmamahLabProgram.javaL1 import java.util.Scanner;23 public class LabProgram {4 public static void main(String[] args) {5Submit modePunyour program ab often 63 you'd like before submitting for grading, Below, type anmen dick Run program and observe the programs outputput acest them80°FUHNMS in ON CO67913

is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as input, and output the gas cost les, 75 miles, and 500 miles. ut each floating-point value with two digits after the decimal point, which can be achieved as follows: tem.out.printf("%.2f", yourValue); e output ends with a newline.

is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as input, and output the gas cost les, 75 miles, and 500 miles. ut each floating-point value with two digits after the decimal point, which can be achieved as follows: tem.out.printf("%.2f", yourValue); e output ends with a newline.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a program that computes and displays the charges for a patient's hospital stay. First, the program should ask if the patient was admitted as an inpatient or an outpatient. If the patient was an inpatient, the following data should be entered: • The number of days spent in the hospital • The daily rate Hospital medication charges • Charges for hospital services (lab tests, etc.) The program should ask for the following data if the patient was an outpatient: • Charges for hospital services (lab tests, etc.) • Hospital medication charges The program should use two overloaded functions to calculate the total charges. One of the functions should accept arguments for the inpatient data, while the other function accepts arguments for outpatient information. Both functions should return the total charges and display it for the user. After the total charges have been calculated and displayed, write the result to a file, PatientReport.txt. You can use the techniques you learned in Chapter…
Write a program that computes and displays the charges for a patient’s hospital stay. First, the program should ask if the patient was admitted as an inpatient or an outpatient. If the patient was an inpatient, the following data should be entered: The number of days spent in the hospital The daily rate Charges for hospital services (lab tests, etc.) Hospital medication charges If the patient was an outpatient, the following data should be entered: Charges for hospital services (lab tests, etc.) Hospital medication charges Use a single, separate function to validate that no input is less than zero. If it is, it should be reentered before being returned. Once the required data has been input and validated, the program should use two overloaded functions to calculate the total charges. One of the functions should accept arguments for the inpatient data, while the other function accepts arguments for outpatient data. Both functions should return the total charges
Exercise GradesStatistics (Method): Write a program called GradesStatistics, which reads in n grades (of int between 0 and 100, inclusive) and displays the average, minimum, maximum, median and standard deviation. Display the floating-point values upto 2 decimal places. Your output shall look like:Enter the number of students: 4Enter the grade for student 1: 50Enter the grade for student 2: 51Enter the grade for student 3: 56Enter the grade for student 4: 53{50,51,56,53}The average is: 52.50The median is: 52.00The minimum is: 50The maximum is: 56The standard deviation is: 2.29The formula for calculating standard deviation is:Hints:public class GradesStatistics {public static int[] grades; // Declare an int[], to be allocated later.// This array is accessible by all the methods.public static void main(String[] args) {readGrades(); // Read and save the inputs in int[] gradesprintArray(grades);System.out.println("The average is " + average(grades));System.out.println("The median is " +…
Part 1: Complete the survey. Part 2: Peek-a-boo is a fun game that little kids like to play. To simulate this game on the computer, write a program that will generate a random number between 1 and 4. Then, will print to the screen the animal name associated to that number. The animal names used will be: pig when a 1 is generated cow when a 2 is generated chicken when a 3 is generated horse when a 4 is generated If your program generates a 3, the output will be: chicken The player will then enter a 1 if they would like to play again or anything else to exit the program. If the player enters "1 1 1 0", the output will be: horse chicken cow horse For coding simplicity, follow each output animal by a space, even the last one. Hint: To make testing easier, seed your random number generator with 0.
Write a program that computes and displays the charges for a patient’s hospital stay. First, the program should ask if the patient was admitted as an in-patient or an out-patient. If the patient was an in-patient the following data should be entered: • The number of days spent in the hospital• The daily rate• Charges for hospital services (lab tests, etc.)• Hospital medication charges.If the patient was an out-patient the following data should be entered:• Charges for hospital services (lab tests, etc.)• Hospital medication charges.Use a single, separate function to validate that no input is less than zero. If it is, it should be re-entered before being returned.Once the required data has been input and validated, the program should use two overloaded functions to calculate the total charges. One of the functions should accept arguments for the in-patient data, while the other function accepts arguments for out- patient data. Both functions should return the total charges.
The monthly payment for a givenloan pays the principal and the interest. The monthly interest is computed by multiplyingthe monthly interest rate and the balance (the remaining principal). The principalpaid for the month is therefore the monthly payment minus the monthly interest.Write a program that lets the user enter the loan amount, number of years, and interestrate then displays the amortization schedule for the loan. Here is a sample run: Loan Amount: 10000 ↵EnterNumber of Years: 1 ↵EnterAnnual Interest Rate: 7 ↵EnterMonthly Payment: 865.26Total Payment: 10383.21Payment# Interest Principal Balance1 58.33 806.93 9193.072 53.62 811.64 8381.43...11 10.00 855.26 860.2712 5.01 860.25 0.01
10-6. Addition: One common problem when prompting for numerical input occurs when people provide text instead of numbers. When you try to convert the input to an int, you’ll get a ValueError. Write a program that prompts for two numbers. Add them together and print the result. Catch the ValueError if either input value is not a number, and print a friendly error message. Test your program by entering two numbers and then by entering some text instead of a number.
10-6. Addition: One common problem when prompting for numerical input occurs when people provide text instead of numbers. When you try to convert the input to an int, you’ll get a ValueError. Write a program that prompts for two numbers. Add them together and print the result. Catch the ValueError if either input value is not a number, and print a friendly error message. Test your program by entering two numbers and then by entering some text instead of a number. 10-7. Addition Calculator: Wrap your code from 10-6 in a while loop so the user can continue entering numbers even if they make a mistake and enter text instead of a number.
Write a program that computes the molecular weight of a carbohydrate (ingrams per mole) based on the number of hydrogen, carbon, and oxygenatoms in the molecule. The program should prompt the user to enter thenumber of hydrogen atoms, the number of carbon atoms, and the numberof oxygen atoms. The program then prints the total combined molecularweight of all the atoms based on these individual atom weights:Atom Weight(grams I mole)H 1.00794c 12.01070 15.9994For example, the molecular weight of water (H20) is: 2(1.00794) +15.9994 = 18.01528.
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.
Q1: The local Driver's License Office has asked you to write a program that grades the writ- ten portion of the driver's license exam. The exam has 20 multiple choice questions. Here are the correct answers: 1. A 2. D 3. B 4. B 5. C 6. B 7. A 8. B 9. C 10. D 11. A 12. C 13. D 14. B 15. D 16. C 17. C 18. A 19. D 20. B Your program should store the correct answers shown above in an array. It should ask the user to enter the student's answers for each of the 20 questions, and the answers should be stored in another array. After the student's answers have been entered, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam.) It should then display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the question numbers of the incorrectly answered questions. Input Validation: Only accept the letters A, B, C, or…
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.…