Java: Introduction to Problem Solving and Programming
7th Edition
ISBN: 9780133834604
Author: SAVITCH
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4, Problem 8PP
You have three identical prizes to give away and a pool of ten finalists. The finalists are assigned numbers from 1 to 10. Write a
int num = (int) (Math.random() * 10) +1;
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Write a program that generates a random number in the range from 1 through 100
After generating the random number, the user is to guess the number. If the user’s guess is higher than the random number, the program should display “Too high, try again”
If user’s guess is lower than the random number, the program should display “Too low, try again”.
If the user guesses the number, the program should congratulate the user and then generate a NEW random number so the game can start over.
Make the game menu driven with these options
Main Menu
______________
1)Play Game
2)Exit
written in python
Using Paython
Write a program that asks a student for his grade (out of 100) in 3 exams and then print out his final grade (out of 100), given that the weight of the first exam is 30%, the second 30%, and the third 40%.Example Input:Exam1: 70Exam2: 80Exam3: 90Example Output:Total Grade = 81Explanation: 0.3 * 70 + 0.3 * 80 + 0.4 * 90 = 81
In this program you will ask the user for 4 integers that represent two fractions.
First ask for the numerator of the first and then the denominator. Then ask for the numerator and denominator of the second.Your program should add the two fractions and print out the result.
For example, a sample program run might look like this
Numerator One: 1Denominator One: 2Numerator Two: 2Denominator Two: 5The sum is 9/10
Remember, if you have two fractions you add them with:
a c ad + bc __ + ___ = ______ b d bd
public class AddFractions
{
public static void main(String[] args)
{
//Ask user for the 4 numbers and create necessary variables.
//create your final numerator
//create your final denominator
Chapter 4 Solutions
Java: Introduction to Problem Solving and Programming
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
What is the number of the first byte in a file?
Starting Out with C++ from Control Structures to Objects (9th Edition)
Open file P03-53. For the specified fault, predict the effect on the circuit. Then introduce the fault and veri...
Digital Fundamentals (11th Edition)
Which of the following variable names are written with the convention used in this book? 1. decintrestrate 2. I...
Starting Out With Visual Basic (8th Edition)
On the planet Gzyx, a ball dropped from a height of 20 ft hits the ground in 2 s. If a ball is dropped from the...
Differential Equations: Computing and Modeling (5th Edition), Edwards, Penney & Calvis
In the following exercises, write a program to carry out the task. The program should use variables for each of...
Introduction to Programming Using Visual Basic (10th 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
- (Program) Write a program to simulate the rolling of two dice. If the total of the two dice is 7 or 11, you win; otherwise, you lose. Embellish this program as much as you like with betting, different odds, different combinations for win or lose, stopping play when you have no money left or reach the house limit, displaying the dice, and so forth. (Hint: Calculate the dots showing on each die with theexpressiondots=(int)(6.0randomnumber+1), where random number is between 0 and 1.)arrow_forwardWrite a program that checks to see if the user won the lottery. Assume the winning lottery numbers are 8, 13, 27, 53, and 54. Ask the user for five numbers and compare those numbers to the winning numbers to determine how many matches the user got. In a lottery, the order of the numbers doesn't matter. Test Case 6 Check your lottery numbers here!\nEnter number 1:\n13ENTEREnter number 2:\n53ENTEREnter number 3:\n54ENTEREnter number 4:\n27ENTEREnter number 5:\n8ENTERAll set. The winning numbers were: 8 13 27 53 54\nWOW! Grand prize winner!\n Test Case 7 Check your lottery numbers here!\nEnter number 1:\n13ENTEREnter number 2:\n53ENTEREnter number 3:\n540ENTERMust be between 1 and 99\nEnter number 3:\n54ENTEREnter number 4:\n27ENTEREnter number 5:\n89ENTERAll set. The winning numbers were: 8 13 27 53 54\nWell, you didn't win. You got 4 matching number(s)\narrow_forwardWrite a program that simulates the rolling of two dice. The program should use rand to roll the first dice and should use rand again to roll the second dice. The sum of the two values should then be calculated. Note: Since each dice can show an integer value from 1 to 6, then the sum of the to values will vary from 2 to 12, with 7 being the most frequent sum and 2 and 12 being the least frequent sums. Below shows the 36 possible combinations of the two dice. Your program should roll the two dice 36,000 times. Use a single-subscripted array to tally the numbers of times each possible sum appears. Print the results in a tabular format. Also, determine if the totals reasonable (i.e. there are six ways to roll a 7, so approximately one sixth of all the rolls should be 7).arrow_forward
- Write a program that calculates a “moving (rolling) average” of ten integer numbers entered by the user in the console. print the moving (rolling) average when any new number has been entered. For example: if a user enters (3, 6, 7), then, you should print (3, 4.5, 5.33)arrow_forwardWrite a program that inputs a number and checks whether it is a perfect number or not. A perfect number is the number that is numerically equal to the sum of its divisors. For example, 6 is a perfect number because the divisors of 6 are 1, 2, 3 and 1+2+3=6arrow_forwardWrite a program that first reads the value n, which is the number of numbers to average. It should then read the n positive (float) numbers, average them, and display the average. ENTRYAn integer n and then the n floating numbers EXIT The average of the n numbers read. Example of program execution: Input 3 Entry 2.5 Entry 3.8 Entry 4.6 Output3.633333333333333arrow_forward
- Write a program with total change amount (in cents) as an integer input, and output the change using the fewest coins, one coin type per line. The coin types are Dollars, Quarters, Dimes, Nickels, and Pennies. Use singular and plural coin names as appropriate, like 1 Penny vs. 2 Pennies. Hint: Start from the largest denomination. Divide the change amount by the number of cents in the denomination to get the number of coins used. The remainder of the division is used to find the number of coins used in the next denomination. Ex: value // 100 gives the number of dollars used. The remainder is divided by 25 to find the number of quarters used. Ex: If the input is: 0 (or less than 0), the output is: No change Ex: If the input is: 45 the output is: 1 Quarter 2 Dimesarrow_forwardWrite a program that will figure out the required change for a purchase. Start by asking the user for the price of the product and the amount paid. (We are expecting that the user will give a larger value for the amount paid.) Read in each of these values as a double. Report back to the user the number of each denomination of change due. You are not just telling the user the amount of money he gets back. Hint: Working with integers is much easier. The modulo operator is your friend for this assignment. Also, note that pennies can be tricky due to the poor real number to binary conversions. (Remember that 1.00 could actually be stored as 0.9999999999997.) Do not include five-dollar bills, ten-dollar bills, etc. Only show coins and one-dollar bill amounts. Be sure to test multiple values. There is a test case below. Your program should run the test case exactly as it appears below, and should work on any other case in general. Output Example (User input is marked with >>>.…arrow_forwardWrite a program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical. Ex: If the input is 93, the output is: 93 92 91 90 89 88 Ex: If the input is 77, the output is: 77 Ex: If the input is not between 20 and 98 (inclusive), the output is: Input must be 20-98 For coding simplicity, follow each output number by a space, even the last one. Use a while loop. Compare the digits; do not write a large if-else for all possible same-digit numbers (11, 22, 33, ..., 88), as that approach would be cumbersome for large ranges.arrow_forward
- Suppose that the first number of a sequence is x, where x is an integer. Define a0= x; an+1=an/2 if an is even; an+1= 3*an +1 if an is odd. Then there exists an integer K such that ak=1. Write a Program that prompts the user to input the value of x. The program outputs the integer K such that ak=1 and the numbers a0, a1, a2,……….., ak.. (For example, if x=75, then K=14, and the numbers a0, a1, a2,……….., a14, respectively, are 75,226,113,340,170,85,256,128,64,32,16,8,4,2,1. ) Enhance your program from part a by outputting the position of the largest number and the largest number of the sequence a0, a1, a2,……….., ak.. (For example, the largest number of the sequence 75,226,113,340,170,85,256,128,64,32,16,8,4,2,1 is 340 and its position is 4. )arrow_forwardWrite a program that asks the user to enter 10 numbers, that range from 0-100. Make sure that you do not accept any numbers less than 0, if a user enters a number that is less than 0 then ask him again. Once the user enters all 10 numbers, find and print out the median. How to calculate the Median The median is the middle score of a distribution. To calculate the median Arrange your numbers in numerical order. Count how many numbers you have. If you have an odd number, divide by 2 and round up to get the position of the median number. If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median. Consider this set of numbers: 5, 7, 9, 9, 11. Since you have an odd number of scores, the median would be 9. You have five numbers, so you divide 5 by 2 to get 2.5, and round up to 3 (to round numbers in C#, use Math.Round()). The number in the third position is the median. In this case, the mean…arrow_forwardWrite a program that simulates the rolling of two dice. The program should use rand to roll the first die and should use rand again to roll the second die. The sum of the two values should then be calculated. [Note: Each die can show an integer value from 1 to 6, so the sum of the two values will vary from 2 to 12, with 7 being the most frequent sum and 2 and 12 being the least frequent sums.] Figure 7.32 shows the 36 possible combinations of the two dice. Your program should roll the two dice 36,000 times. Use a one-dimensional array to tally the numbers of times each possible sum appears. Print the results in a tabular format. Also, determine if the totals are reasonable (i.e., there are six ways to roll a 7, so approximately one-sixth of all the rolls should be 7).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
Java random numbers; Author: Bro code;https://www.youtube.com/watch?v=VMZLPl16P5c;License: Standard YouTube License, CC-BY