Java How To Program (Early Objects)
10th Edition
ISBN: 9780133807943
Author: Deitel, Paul
Publisher: Pearson Education
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Chapter 4, Problem 1.4SRE
Fill in the blanks in each of the following statements:
When it’s not known in advance how many times a set of statements will be repeated, a(n) value can be used to terminate the iteration.
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(DEBUG AND MAKE A FLOWCHART OF THIS PROGRAM)
// This pseudocode is intended to display// employee net pay values. All employees have a standard// $45 deduction from their checks.// If an employee does not earn enough to cover the deduction,// an error message is displayed.// This example is modularized.start Declarations string name string EOFNAME = ZZZZ while name not equal to EOFNAME housekeeping() endwhile while name not equal to EOFNAME mainLoop() endwhile while name not equal to EOFNAME finish() endwhilestop
housekeeping() output "Enter first name or ", EOFNAME, " to quit "return
mainLoop() Declarations num hours num rate num DEDUCTION = 45 num net output "Enter hours worked for ", name input hours output "Enter hourly rate for ", name input rate gross = hours * rate net = gross - DEDUCTION if net > 0 then output "Net pay for ", name, " is ", net else output "Deductions not covered. Net is…
(Financial: credit card number validation) Credit card numbers follow certain pat-
terns. A credit card number must have between 13 and 16 digits. It must start with:
4 for Visa cards
5 for Master cards
37 for American Express cards
6 for Discover cards
In 1954, Hans Luhn of IBM proposed an algorithm for validating credit card
numbers. The algorithm is useful to determine whether a card number is entered
correctly or whether a credit card is scanned correctly by a scanner. Credit card
numbers are generated following this validity check, commonly known as the
Luhn check or the Mod 10 check, which can be described as follows (for illustra-
tion, consider the card number 4388576018402626):
1. Double every second digit from right to left. If doubling of a digit results in a
two-digit number, add up the two digits to get a single-digit number.
4388576018402626
→ 2 * 2 = 4
→ 2 * 2 = 4
→ 4 * 2 = 8
→ 1 * 2 = 2
6 * 2 = 12 (1+ 2 = 3)
→ 5 * 2 = 10 (1+ 0 = 1)
→ 8 * 2 = 16 (1 + 6 = 7)
→ 4 * 2 = 8
Factorial) The factorial of a nonnegative integer n is written n! (pronounced “n factorial”) and is defined as follows:For example, 5!= 5.4.3.2.1 , which is 120. Use while statements in each of the following:A. Write a program that reads a nonnegative integer and computes and prints its factorial.B. Write a program that estimates the value of the mathematical constant e by using the formula:Prompt the user for the desired accuracy of e (i.e., the number of terms in the summation).C. Write a program that computes the value of by using the formula Prompt the user for the desired accuracy of e (i.e., thenumber of terms in the summation).
Chapter 4 Solutions
Java How To Program (Early Objects)
Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - Prob. 1.5SRECh. 4 - Fill in the blanks in each of the following...Ch. 4 - Prob. 1.7SRECh. 4 - Fill in the blanks in each of the following...Ch. 4 - State whether each of the following is true or...Ch. 4 - State whether each of the following is true or...
Ch. 4 - State whether each of the following is true or...Ch. 4 - State whether each of the following is true or...Ch. 4 - State whether each of the following is true or...Ch. 4 - Prob. 2.6SRECh. 4 - State whether each of the following is true or...Ch. 4 - Prob. 2.8SRECh. 4 - State whether each of the following is true or...Ch. 4 - State whether each of the following is true or...Ch. 4 - Write four different Java statements that each add...Ch. 4 - Write Java statements to accomplish each of the...Ch. 4 - Write Java statements to accomplish each of the...Ch. 4 - Write Java statements to accomplish each of the...Ch. 4 - Write Java statements to accomplish each of the...Ch. 4 - Write a Java statement to accomplish each of the...Ch. 4 - Write a Java statement to accomplish each of the...Ch. 4 - Write a Java statement to accomplish each of the...Ch. 4 - Write a Java statement to accomplish each of the...Ch. 4 - Combine the statements that you wrote in Exercise...Ch. 4 - Determine the value of the variables in the...Ch. 4 - Identify and correct the errors in each of the...Ch. 4 - What is wrong with the following while statement?...Ch. 4 - Compare and contrast the if single-selection...Ch. 4 - Explain what happens when a Java program attempts...Ch. 4 - Describe the two ways in which control statements...Ch. 4 - What type of iteration would be appropriate for...Ch. 4 - What is the difference between preincrementing and...Ch. 4 - Prob. 6.1ECh. 4 - What does the following program print? 1. //...Ch. 4 - 1. Read the problem statement. 2. Formulate the...Ch. 4 - 1. Read the problem statement. 2. Formulate the...Ch. 4 - 1. Read the problem statement. 2. Formulate the...Ch. 4 - 1. Read the problem statement. 2. Formulate the...Ch. 4 - (Find the Largest Number) The process of finding...Ch. 4 - Prob. 13.1ECh. 4 - (Find the Two Largest Numbers) Using an approach...Ch. 4 - Prob. 15.1ECh. 4 - What does the following program print? 1. //...Ch. 4 - What does the following program print? 1. //...Ch. 4 - (Dangling-else Problem) The Java compiler always...Ch. 4 - (Another Dangling-else Problem) Based on the...Ch. 4 - (Another Dangling-else Problem) Based on the...Ch. 4 - Prob. 21.1ECh. 4 - (Palindromes) A palindrome is a sequence of...Ch. 4 - (Printing the Decimal Equivalent of a Binary...Ch. 4 - (Checkerboard Pattern of Asterisks) Write an...Ch. 4 - (Multiples of 2 with an Infinite Loop) Write an...Ch. 4 - (Whats Wrong with This Code?) What is wrong with...Ch. 4 - Prob. 27.1ECh. 4 - Prob. 28.1ECh. 4 - Write an application that estimates the value of...Ch. 4 - Write an application that computes the value of e...Ch. 4 - (Enforcing Privacy with Cryptography) The...Ch. 4 - (World Population Growth) World population has...
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