Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4.1, Problem 6STQ
Imagine a
System.out.print("Enter the population of the city:");
int population = keyboard.nextInt();
Write a while loop after these statements that ensures that population is positive. If the user enters a population that is either negative or zero, ask the user to enter a nonnegative value.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Convert feet into meters: Write a program which reads the number in feet, converts it to
meters, and displays the result. One foot is 0.305 meters. One foot is 12 inches.
Sample Run
Enter the number of feet
16.5
16.5 feet is 5.0325 meters
16.5 feet is 198.0 inches
Write an application that finds the smallest of several integers. Assume that the first value read specifies the number of values to input from the user.
QUICK-BASIC64
In a 50-person class, students with grades below 70 are considered unsuccessful. Write an algorithm that calculates students who
fail the exam. (Please explain everything the program in details and please check whether the program runs or not by using q-
basic64. Thank you so much)
Chapter 4 Solutions
Java: An Introduction to Problem Solving and Programming (7th Edition)
Ch. 4.1 - What output is produced by the following code? int...Ch. 4.1 - Can the body of a while loop execute zero times?...Ch. 4.1 - What output is produced by the following code? int...Ch. 4.1 - Revise the following code so that it uses a while...Ch. 4.1 - What output is produced by the following code? int...Ch. 4.1 - Imagine a program that reads the population of a...Ch. 4.1 - Prob. 7STQCh. 4.1 - What output is produced by the following code? int...Ch. 4.1 - What output is produced by the following code? for...Ch. 4.1 - What output is produced by the following code? for...
Ch. 4.1 - Prob. 11STQCh. 4.1 - Write a for statement that displays the even...Ch. 4.1 - Prob. 13STQCh. 4.2 - Write a Java loop that will display the phrase One...Ch. 4.2 - Write a Java loop that will set the variable...Ch. 4.2 - Write a Java loop that will read a list of numbers...Ch. 4.2 - What output is produced by the following code? for...Ch. 4.2 - What output is produced by the following code? for...Ch. 4.2 - What output is produced by the following code? for...Ch. 4.2 - Revise the loop shown in Listing 4.6 to use a...Ch. 4.2 - What is the bug in the code in the section Tracing...Ch. 4.2 - Add some suitable output statements to the...Ch. 4.2 - What is the bug in the code in the previous...Ch. 4.2 - Prob. 24STQCh. 4.2 - Suppose that you did not have assertion checking...Ch. 4.3 - Prob. 26STQCh. 4 - Write a fragment of code that will read words from...Ch. 4 - Develop an algorithm for computing the...Ch. 4 - Develop an algorithm for a simple game of guessing...Ch. 4 - Write a fragment of code that will compute the sum...Ch. 4 - Convert the following code so that it uses nested...Ch. 4 - Write a for statement to compute the sum 1 + 22 +...Ch. 4 - (Optional) Repeat the previous question, but use...Ch. 4 - Write a loop that will count the number of blank...Ch. 4 - Write a loop that will create a new string that is...Ch. 4 - Write a program that will compute statistics for...Ch. 4 - Suppose we attend a party. To be sociable, we will...Ch. 4 - Define an enumeration for each of the months in...Ch. 4 - Write a fragment of code that computes the final...Ch. 4 - Suppose that you work for a beverage company. The...Ch. 4 - Suppose that we want to compute the geometric mean...Ch. 4 - Prob. 16ECh. 4 - Create an applet that draws a pattern of circles...Ch. 4 - Prob. 18ECh. 4 - What does the following fragment of code display?...Ch. 4 - Repeat Practice Program 4 of Chapter 3, but use a...Ch. 4 - Write a program that implements your algorithm...Ch. 4 - Repeat Practice Program 5 of Chapter 3, but use a...Ch. 4 - Write a program to read a list of nonnegative...Ch. 4 - Write a program to read a list of exam scores...Ch. 4 - Combine the programs from Programming Projects 5...Ch. 4 - Write a program that simulates the Magic 8 Ball...Ch. 4 - Whats for dinner? Let the computer decide. Write a...Ch. 4 - Write a program that implements your algorithm...Ch. 4 - Prob. 2PPCh. 4 - Write a program that reads a bank account balance...Ch. 4 - Modify Programming Project 5 from Chapter 2 to...Ch. 4 - Write a program that asks the user to enter the...Ch. 4 - Write a program that simulates a bouncing ball by...Ch. 4 - You have three identical prizes to give away and a...Ch. 4 - Prob. 9PPCh. 4 - Holy digits Batman! The Riddler is planning his...Ch. 4 - Your country is at war and your enemies are using...Ch. 4 - Prob. 12PPCh. 4 - Prob. 13PPCh. 4 - Prob. 14PPCh. 4 - Prob. 15PPCh. 4 - Prob. 16PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Look at the following class definitions: class Plant: def _ _init_ _ (self, plant_type) : self. _ _plant_type =...
Starting Out with Python (3rd Edition)
Summarize the distinction between declarative statements and imperative statements.
Computer Science: An Overview (12th Edition)
For each of the following E-R diagrams from Chapter 2 C: Transform the diagram to a relational schema that show...
Modern Database Management
What is the output of the following program lines when embedded in a correct program that declares number to be...
Problem Solving with C++ (9th Edition)
This is automatically provided for a class if you do not write one yourself. a. accessor method b. default inst...
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Vacation Days Write a program that prompts the users to enter the number of days they plan to spend on their ne...
Starting Out with C++: Early Objects (9th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Given an airplane’s acceleration a and take-off speed v, you can compute the minimum runway length needed for an airplane to take off using the following formula: length = v2 / 2 * a Write a program that prompts the user to enter v in meters/second (m/s) and the acceleration a in meters/second squared ( m/s2 ) , then displays the minimum runway length needed to take off. Here is a sample run: Enter speed and acceleration: 60 3.5 [enter] The minimum runway length for this airplane is 514.286arrow_forwardPart A: While Loop Program - using Java. Write a program that detects Fibonacci numbers. Prompt the user to input a positive integer. Upon input, the program will determine if the number is either a Fibonacci number or not. If a Fibonacci number, then the order of the number in the sequence must be output. If not a Fibonacci number, then the Fibonacci numbers above and below it (including their order in the sequence) must be output. Once it finishes, the program will prompt the user for a new number. The program will exit if the user enters a non-integer number or string (such as “quit”) instead of an integer. Use the sample output file, fib-seq-det.txt, to view a sample session Additionally: For both the above problems, the first four numbers of the Fibonacci sequence are: 0, 1, 1, and 2. Part A must use While loops onlyarrow_forwardIn the expression, int n = rand() % 33 - 32; a. Generates a value in the range [-32, 0] b. Generates a value in the range [-32, 32] c. Generates a value in the range [0, 33] d. Generates a value in the range [-33, 0] e. Generates a value in the range [0, 32]arrow_forward
- Question#2. The distance a vehicle travels can be calculated as fallout: Distance = Speed * Time For example, if a train travels 60 miles-per-hour for three hours, the distance [raveled is 120 miles. Write a program that asks for the speed of a vehicle (in miles-per-hour) and the number of hours it has traveled. It should use a loop to display the distance a vehicle has traveled for each hour of a time period specified by the user. For example, if a vehicle is traveling at 40 mph far a three-hour time period, it should display a report similar to the one chat follows: Hour Distance Traveled 1 90 2 100 3 150 Input Validation: Do not accept a negative number for speed and do not accept any value les than 1 for time traveled.arrow_forwardForms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs Yes if every character is a digit 0-9. Ex: If the input is: 1995 the output is: Yes Ex: If the input is: 42,000 or 1995! the output is: No Hint: Use a loop and the Character.isDigit() function.arrow_forwardUse While loop to solve the problems Note: Python language for solution 4. Write a program that uses a while loop, the program should do the following: The program should repeatedly read numbers until the user enters "done". Once "done" is entered, print out the total, count, and average of the numbers. 5. Write a program to find the sum of even numbers until n, where n is an int entered by the user, example: n = 11, sum = 2+4+6+8+10, sum = 30.arrow_forward
- The following do...while loop rewritten as a for loop would be: int num = 5; do { System.out.print(num + " " ); num *= 3; //num = num * 3; } while (num <= 30); All of these are correct. int num = 5; for (num <= 30) { System.out.print(num + " "); num *= 3; } for (int num = 5; num <= 30) { System.out.print(num + " "); num *= 3; } for (int num = 5; num <= 30; num *= 3) { System.out.print(num + " " ); }arrow_forwardFinancial application: compute future apartment rent) Suppose that the rent for an apartment is $1000 thisyear and increases 3% every year. Write a program that computes the rent in five years and the total rent forone year starting five years from now.arrow_forward1. Write a program that asks the user for the price of several items sold until the user answers with an “N”. The program should accumulate the total of all prices entered. After the loop is finished, the program is to compute the sales tax of all items as 7% [0.07]. Finally, the program is to print out the total of the items, the sales tax due, and the total amount due on three separate lines.arrow_forward
- Transient PopulationPopulations are affected by the birth and death rate, as well as the number of people who move in and out each year. The birth rate is the percentage increase of the population due to births and the death rate is the percentage decrease of the population due to deaths. Write a program that displays the size of a population for any number of years. The program should ask for the following data: The starting size of a population P The annual birth rate (as a percentage of the population expressed as a fraction in decimal form)B The annual death rate (as a percentage of the population expressed as a fraction in decimal form)D The average annual number of people who have arrived A The average annual number of people who have moved away M The number of years to display nYears Write a function that calculates the size of the population after a year. To calculate the new population after one year, this function should use the formulaN = P + BP - DP + A - Mwhere N is the…arrow_forwardUse C++ programming language.. Random Number Guessing Game Write a program that generates a random number between 1 and 100 and asks the user to guess what the number is. If the user’s guess is higher than the random number, the program should display “Too high. Try again.” If the user’s guess is lower than the random number, the program should display “Too low. Try again.” The program should use a loop that repeats until the user correctly guesses the random number. Then the program should display “Congratulations. You figured out my number.”arrow_forwardBasic while loop expression. Write a while loop that prints userNum divided by 4 (integer division) until reaching 2 or less. Follow each number by a space. Example output for userNum = 160:40 10 2 Note: These activities may test code with different test values. This activity will perform four tests, with userNum = 160, then with userNum = 8, then with userNum = 0, then with userNum = -1. See "How to Use zyBooks".Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage LearningC++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrProgramming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage Learning
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:9781337102124
Author:Diane Zak
Publisher:Cengage Learning
Constants, Variables, Data types, Keywords in C Programming Language Tutorial; Author: LearningLad;https://www.youtube.com/watch?v=d7tdL-ZEWdE;License: Standard YouTube License, CC-BY