Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Textbook Question
Chapter 2.2, Problem 12SC
The volume of a sphere is given by
If the radius is given by a variable radius of type double, write a Java expression for the volume.
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A Newton number is a 4-digit integer number for which the sum of its digits to power 4 is equal to the
number itself. Example of a Newton number is 1634 since:
1634 1*1*1*1+6*6*6*6+3*3*3*3+4*4*4*4 which is: 1+ 1296+256+81.
Write a Java program that checks whether or not a number is a Newton number.
Sample Run1:
Enter an integer number of 4 digits: 3712
3712 is not a Newton number
Sample Run2:
Enter an integer number of 4 digits: 1634
1634 is not a Newton number
Sample Run2:
Enter an integer number of 4 digits: 234
Invalid input!!
The following problem shows up in a number of Java texts, including Savitch's textbook:
The Harris-Benedict equation estimates the number of calories your body needs to maintain your weight if you do no exercise. This is called your basal metabolic rate, or BMR.
The calories needed for a woman to maintain her weight is:
WBMR = 655 + (4.3 × weight in pounds) + (4.7 × height in inches) − (4.7× age in years)
The calories needed for a man to maintain his weight is:
MBMR = 66 + (6.3 × weight in pounds) + (12.9 × height in inches) − (6.8 × age in years)
A typical chocolate bar will contain around 230 calories.
Write a program that allows the user to input his or her weight in pounds, height in inches, and age in years. The program should then output the number of chocolate bars that should be consumed to maintain one’s weight for both a woman and a man of the input weight, height, and age.
NOTE: This is an application of a selection statement!
Input Data:
Use a named constant for the…
In JAVA
ASSIGNMENT DESCRIPTION:
A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-life of about 6 hours in humans. Given caffeine amount (in mg) as input, output the caffeine level after 6, 12, and 24 hours.
Output each floating-point value with two digits after the decimal point, which can be achieved as follows:System.out.printf("After 6 hours: %.2f mg\n", yourValue);
Ex: If the input is:
100
the output is:
After 6 hours: 50.00 mg After 12 hours: 25.00 mg After 24 hours: 6.25 mg
Note: A cup of coffee has about 100 mg. A soda has about 40 mg. An "energy" drink (a misnomer) has between 100 mg and 200 mg.
THE CODE I HAVE SO FAR:
import java.util.Scanner;
public class LabProgram {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
double caffeineMg; // "double" supports floating-point like 75.5, versus int for integers like 75.
caffeineMg = scnr.nextDouble();
System.out.printf("After…
Chapter 2 Solutions
Big Java Late Objects
Ch. 2.1 - Declare a variable suitable for holding the number...Ch. 2.1 - What is wrong with the following variable...Ch. 2.1 - Declare and initialize two variables, unitPrice...Ch. 2.1 - Prob. 4SCCh. 2.1 - Some drinks are sold in four-packs instead of...Ch. 2.1 - Prob. 6SCCh. 2.1 - Prob. 7SCCh. 2.1 - Prob. 8SCCh. 2.1 - How would you explain assignment using the parking...Ch. 2.2 - A bank account earns interest once per year. In...
Ch. 2.2 - In Java, how do you compute the side length of a...Ch. 2.2 - The volume of a sphere is given by V=43r3 If the...Ch. 2.2 - Prob. 13SCCh. 2.2 - Prob. 14SCCh. 2.3 - Write statements to prompt for and read the users...Ch. 2.3 - What is wrong with the following statement...Ch. 2.3 - Prob. 17SCCh. 2.3 - What is problematic about the following statement...Ch. 2.3 - What is the output of the following statement...Ch. 2.3 - Using the printf method, print the values of the...Ch. 2.4 - Prob. 21SCCh. 2.4 - Suppose the architect specifies a pattern with...Ch. 2.4 - A robot needs to tile a floor with alternating...Ch. 2.4 - For a particular car, repair and maintenance costs...Ch. 2.4 - The shape of a bottle is approximated by two...Ch. 2.5 - What is the length of the string "Java Program"?Ch. 2.5 - Consider this string variable. String str = "Java...Ch. 2.5 - Use string concatenation to turn the string...Ch. 2.5 - Prob. 29SCCh. 2.5 - Prob. 30SCCh. 2 - Write declarations for storing the following...Ch. 2 - What is the value of mystery after this sequence...Ch. 2 - What is wrong with the following sequence of...Ch. 2 - Write the following mathematical expressions in...Ch. 2 - Write the following Java expressions in...Ch. 2 - What are the values of the following expressions?...Ch. 2 - What are the values of the following expressions,...Ch. 2 - What are the values of the following expressions?...Ch. 2 - Assuming that a and b are variables of type int,...Ch. 2 - Suppose direction is an integer angle between 0...Ch. 2 - Find at least five compile-time errors in the...Ch. 2 - Find three run-time errors in the following...Ch. 2 - Consider the following code segment. double...Ch. 2 - Explain the differences between 2, 2.0, 2, 2, and...Ch. 2 - Explain what each of the following program...Ch. 2 - Write pseudocode for a program that reads a word...Ch. 2 - Write pseudocode for a program that reads a name...Ch. 2 - Write pseudocode for a program that computes the...Ch. 2 - Modify the pseudocode for the program in How To...Ch. 2 - Prob. 20RECh. 2 - You are cutting off a piece of pie like this,...Ch. 2 - The following pseudocode describes how to obtain...Ch. 2 - Suppose you are given a string str and two...Ch. 2 - Prob. 24RECh. 2 - For each of the following computations in Java,...Ch. 2 - Prob. 26RECh. 2 - This chapter contains a number of recommendations...Ch. 2 - Write a program that displays the dimensions of a...Ch. 2 - Write a program that computes and displays the...Ch. 2 - Write a program that reads a number and displays...Ch. 2 - Write a program that prompts the user for two...Ch. 2 - Enhance the output of Exercise E2.4 so that the...Ch. 2 - Write a program that prompts the user for a...Ch. 2 - Write a program that prompts the user for a radius...Ch. 2 - Write a program that asks the user for the lengths...Ch. 2 - Improve the program discussed in How To 2.1 to...Ch. 2 - Write a program that helps a person decide whether...Ch. 2 - Write a program that asks the user to input The...Ch. 2 - File names and extensions. Write a program that...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Printing a grid. Write a program that prints the...Ch. 2 - Write a program that reads in an integer and...Ch. 2 - Write a program that reads two times in military...Ch. 2 - Writing large letters. A large letter H can be...Ch. 2 - Write a program that transforms numbers 1, 2, 3, ,...Ch. 2 - Write a program that prints a Christmas tree:...Ch. 2 - Easter Sunday is the first Sunday after the first...Ch. 2 - In this project, you will perform calculations...Ch. 2 - The following pseudocode describes how a bookstore...Ch. 2 - The following pseudocode describes how to turn a...Ch. 2 - The following pseudocode describes how to extract...Ch. 2 - Giving change. Implement a program that directs a...Ch. 2 - An online bank wants you to create a program that...Ch. 2 - A video club wants to reward its best members with...Ch. 2 - Consider the following circuit. Write a program...Ch. 2 - The dew point temperature Td can be calculated...Ch. 2 - The pipe clip temperature sensors shown here are...Ch. 2 - Prob. 12PPCh. 2 - Consider the following tuning circuit connected to...Ch. 2 - According to the Coulomb force law, the electric...
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