Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
5th Edition
ISBN: 9780134801407
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 15MC
A(n) ____ specifies a variable's name and data type.
- a. assignment
- b. variable specification
- c. variable certification
- d. variable declaration
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2. Signed Integers
Unsigned binary numbers work for natural numbers, but many calculations use negative
numbers as well. To deal with this, a number of different methods have been used to represent
signed numbers, but we will focus on two's complement, as it is the standard solution for
representing signed integers.
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-2
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• Otherwise exactly the same as unsigned integers.
i=0
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• A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1,
or 1 becomes 0) and then add 1 to the least significant bit.
• Addition is exactly the same as with an unsigned number.
2.2 Exercises
For questions 1-3, answer each one for the case of a two's complement number and an
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Chapter 2 Solutions
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Ch. 2.1 - Who is a programmers customer?Ch. 2.1 - What is a software requirement?Ch. 2.1 - What is an algorithm?Ch. 2.1 - What is pseudocode?Ch. 2.1 - Prob. 2.5CPCh. 2.1 - Prob. 2.6CPCh. 2.2 - Prob. 2.7CPCh. 2.2 - Prob. 2.8CPCh. 2.2 - What is a sequence structure?Ch. 2.2 - Prob. 2.10CP
Ch. 2.2 - Prob. 2.11CPCh. 2.2 - Prob. 2.12CPCh. 2.2 - Summarize three common rules for naming variables.Ch. 2.2 - Prob. 2.14CPCh. 2.2 - Look at the following pseudocode statement: Input...Ch. 2.2 - Prob. 2.16CPCh. 2.2 - Prob. 2.17CPCh. 2.2 - What two steps usually take place when a program...Ch. 2.2 - What does the term user-friendly mean?Ch. 2.3 - Prob. 2.20CPCh. 2.3 - When you assign a value to a variable, what...Ch. 2.3 - Summarize the mathematical order of operations, as...Ch. 2.3 - Prob. 2.23CPCh. 2.3 - Prob. 2.24CPCh. 2.4 - What two items do you usually specify with a...Ch. 2.4 - Does it matter where you write the variable...Ch. 2.4 - What is variable initialization?Ch. 2.4 - Prob. 2.28CPCh. 2.4 - What is an uninitialized variable?Ch. 2.7 - Prob. 2.30CPCh. 2.7 - Prob. 2.31CPCh. 2.7 - Prob. 2.32CPCh. 2 - A error does not prevent the program from running,...Ch. 2 - Prob. 2MCCh. 2 - A(n) _______ is a set of well-defined logical...Ch. 2 - An informal language that has no syntax rules, and...Ch. 2 - A ____ is a diagram that graphically depicts the...Ch. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - A(n) _____ is a message that tells (or asks) the...Ch. 2 - A(n) ________ sets a variable to a specified...Ch. 2 - In the expression 12 + 7, the values on the right...Ch. 2 - A(n) _____ operator raises a number to a power. a....Ch. 2 - A(n) _________ operator performs division, but...Ch. 2 - A(n) ____ specifies a variable's name and data...Ch. 2 - Assigning a value to a variable in a declaration...Ch. 2 - Prob. 17MCCh. 2 - Prob. 18MCCh. 2 - A debugging process in which you imagine that you...Ch. 2 - Prob. 20MCCh. 2 - Programmers must be careful not to make syntax...Ch. 2 - In a math expression, multiplication and division...Ch. 2 - Variable names can have spaces in them.Ch. 2 - In most languages, the first character of a...Ch. 2 - Prob. 5TFCh. 2 - In languages that require variable declarations, a...Ch. 2 - Uninitialized variables are a common cause of...Ch. 2 - The value of a named constant cannot be changed...Ch. 2 - Hand tracing is the process of translating a...Ch. 2 - Prob. 10TFCh. 2 - What does a professional programmer usually do...Ch. 2 - What is pseudocode?Ch. 2 - Computer programs typically perform what three...Ch. 2 - What does the term user-friendly mean?Ch. 2 - What two things must you normally specify in a...Ch. 2 - What value is stored in uninitialized variables?Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, x, y, and z are all...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that assigns the...Ch. 2 - Write a pseudocode statement that assigns the sum...Ch. 2 - Write a pseudocode statement that subtracts the...Ch. 2 - Write a pseudocode statement that multiplies the...Ch. 2 - If the following pseudocode were an actual...Ch. 2 - Prob. 12AWCh. 2 - If the following pseudocode were an actual...Ch. 2 - If the programmer translates the following...Ch. 2 - The following code will not display the results...Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Personal Information Design a program that...Ch. 2 - Sales Prediction A company has determined that its...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Total Purchase A customer in a store is purchasing...Ch. 2 - Distance Traveled Assuming there are no accidents...Ch. 2 - Sales Tax Design a program that will ask the user...Ch. 2 - Miles-per-Gallon A cars miles-per-gallon (MPG) can...Ch. 2 - Tip, Tax, and Total Design a program that...Ch. 2 - Weight Loss If a moderately active person cuts...Ch. 2 - Amount Paid Over Time A person pays a fixed amount...Ch. 2 - Leftover Pizza Youre planning a pizza party and...Ch. 2 - Celsius to Fahrenheit Temperature Converter Design...Ch. 2 - Stock Transaction Program Last month Joe purchased...Ch. 2 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 2 - Male and Female Percentages Design a program that...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...
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