STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
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Question
Chapter 4.1, Problem 4.3CP
A)
Program Plan Intro
Relational Operators:
Relational operators are used to compare numeric and character values using the following operators:
- Greater than (>)
- Less than (<)
- Greater than or equal to (>=)
- Less than or equal to (<=)
- Equal to (==)
- Not equal to (!=)
These operators will determine whether specific relationship exists between two values of same type.
Relational Expression:
- Relational operators are “binary”, so it needs two operands for comparison. Consider the following expression using the less-than operator:
A < B
- The above expression is called a “relational expression”. It is used to find whether “A” is less than “B”.
- Relational expression is also referred as “Boolean expression”, because the resultant value of all relational expression is either “True” or “False”. But the states of Boolean values are stored as 0 and 1.
- Hence, if the resultant value of relational expression is 0, then the expression is “False”. If the resultant value of relational expression is 1, then the expression is “True”.
B)
Program Plan Intro
Relational Operators:
Relational operators are used to compare numeric and character values using the following operators:
- Greater than (>)
- Less than (<)
- Greater than or equal to (>=)
- Less than or equal to (<=)
- Equal to (==)
- Not equal to (!=)
These operators will determine whether specific relationship exists between two values of same type.
Relational Expression:
- Relational operators are “binary”, so it needs two operands for comparison. Consider the following expression using the less-than operator:
A < B
- The above expression is called a “relational expression”. It is used to find whether “A” is less than “B”.
- Relational expression is also referred as “Boolean expression”, because the resultant value of all relational expression is either “True” or “False”. But the states of Boolean values are stored as 0 and 1.
- Hence, if the resultant value of relational expression is 0, then the expression is “False”. If the resultant value of relational expression is 1, then the expression is “True”.
C)
Program Plan Intro
Relational Operators:
Relational operators are used to compare numeric and character values using the following operators:
- Greater than (>)
- Less than (<)
- Greater than or equal to (>=)
- Less than or equal to (<=)
- Equal to (==)
- Not equal to (!=)
These operators will determine whether specific relationship exists between two values of same type.
Relational Expression:
- Relational operators are “binary”, so it needs two operands for comparison. Consider the following expression using the less-than operator:
A < B
- The above expression is called a “relational expression”. It is used to find whether “A” is less than “B”.
- Relational expression is also referred as “Boolean expression”, because the resultant value of all relational expression is either “True” or “False”. But the states of Boolean values are stored as 0 and 1.
- Hence, if the resultant value of relational expression is 0, then the expression is “False”. If the resultant value of relational expression is 1, then the expression is “True”.
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Answer the following questions with a yes or no.A) If it is true that x > y and it is also true that x < z, does that mean y < zis true?B) If it is true that x >= y and it is also true that z == x, does that mean thatz == y is true?C) If it is true that x != y and it is also true that x != z, does that mean thatz != y is true?
Question 10
Choose one of the following answer wisely
Question 37
The correct statements are:
If both L and ¬L are in D, then L must be also in SD.
If both L and ¬L are in D, then ¬L must be also in SD.
If both L and ¬L are in SD, then L must be also in D.
If both L and ¬L are in SD, then ¬L must be also in D.
Chapter 4 Solutions
STARTING OUT WITH C++ MPL
Ch. 4.1 - Prob. 4.1CPCh. 4.1 - Indicate whether each of the following statements...Ch. 4.1 - Prob. 4.3CPCh. 4.1 - What will the following program segment display?...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that multiplies payRate by...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - TRUE or FALSE: Both of the following if statements...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that prints The performance...
Ch. 4.2 - Although the following code segments are...Ch. 4.3 - Write an if/else statement that assigns 0.10 to...Ch. 4.3 - Write an if / else statement that assigns 1 to x...Ch. 4.3 - Write an if /else statement that assigns .10 to...Ch. 4.3 - True or false: The following if / else statements...Ch. 4.3 - Will the if / else statement shown on the right...Ch. 4.4 - What will the following program segment display?...Ch. 4.4 - The following program is used in a bookstore to...Ch. 4.4 - Write an if/else if statement that carries out the...Ch. 4.4 - Write an if/else if statement that performs the...Ch. 4.6 - If you execute the following code, what will it...Ch. 4.6 - If you execute the following code, what will it...Ch. 4.7 - Prob. 4.23CPCh. 4.7 - If a = 2, b = 4, and c = 6, indicate whether each...Ch. 4.7 - If a = 2, b = 4, and c = 6, is the following...Ch. 4.7 - Rewrite the following using the ! operator so that...Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.9 - Find and fix the errors in the following code...Ch. 4.10 - Prob. 4.30CPCh. 4.10 - Indicate whether each of the following relational...Ch. 4.10 - Prob. 4.32CPCh. 4.10 - Indicate whether each of these character testing...Ch. 4.11 - Rewrite the following if / else statements as...Ch. 4.11 - Rewrite the following conditional expressions as...Ch. 4.11 - Prob. 4.36CPCh. 4.12 - Explain why you cannot convert the following i...Ch. 4.12 - What is wrong with the following switch statement?...Ch. 4.12 - What will the following program segment display?...Ch. 4.12 - Complete the following program segment by writing...Ch. 4.12 - Rewrite the following program segment using a...Ch. 4.13 - Prob. 4.42CPCh. 4.13 - Follow the instructions to complete the following...Ch. 4 - An expression using the greater-than, less-than,...Ch. 4 - Prob. 2RQECh. 4 - The if statement regards an expression with the...Ch. 4 - For an if statement to conditionally execute a...Ch. 4 - In an if / else statement, the if part executes...Ch. 4 - The trailing else in an if / else if statement has...Ch. 4 - If the subexpression on the left of the logical...Ch. 4 - If the subexpression on the left of the || logical...Ch. 4 - The ____ logical operator has higher precedence...Ch. 4 - Logical operators have _____ precedence than...Ch. 4 - The _____ logical operator works best when testing...Ch. 4 - The _____ logical operator works best when testing...Ch. 4 - A variable with _____ scope is only visible when...Ch. 4 - The expression that is tested by a switch...Ch. 4 - A program will fall through to the following case...Ch. 4 - Prob. 16RQECh. 4 - Write an if statement that assigns 100 to x when y...Ch. 4 - Write an if/else statement that assigns 0 to x...Ch. 4 - Write an if / else statement that prints Excellent...Ch. 4 - Write an if statement that sets the variable hours...Ch. 4 - Convert the following conditional expression into...Ch. 4 - Convert the following if/else if statement into a...Ch. 4 - Assume the variables x = 5, y = 6, and z = 8....Ch. 4 - Assume the variables x = 5, y = 6, and z = 8....Ch. 4 - Write a C++ statement that prints the message The...Ch. 4 - Prob. 26RQECh. 4 - Write a C++ statement that prints the message The...Ch. 4 - Prob. 28RQECh. 4 - Using the following chart, write a C++ statement...Ch. 4 - Write one or more C++ statements that assign the...Ch. 4 - The following statement should determine if x is...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should determine if x has...Ch. 4 - Each of the following program segments has errors....Ch. 4 - Sometimes either a switch statement or an if /else...Ch. 4 - Minimum / Maximum Write a program that asks the...Ch. 4 - Roman Numeral Converter Write a program that asks...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Areas of Rectangles The area of a rectangle is the...Ch. 4 - Book Club Points An online book club awards points...Ch. 4 - Change for a Dollar Game Create a change -counting...Ch. 4 - Time Calculator Write a program that asks the user...Ch. 4 - Math Tutor Version 2 This is a modification of the...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Bank Charges A bank charges 15 per month plus the...Ch. 4 - Prob. 11PCCh. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Running the Race Write a program that asks for the...Ch. 4 - Personal Best Write a program that asks for the...Ch. 4 - February Days The month of February normally has...Ch. 4 - Body Mass Index Write a program that calculates...Ch. 4 - Fat Gram Calculator Write a program that asks for...Ch. 4 - Prob. 18PCCh. 4 - The Speed of Sound in Gases When traveling through...Ch. 4 - Spectral Analysis If a scientist knows the...Ch. 4 - Freezing and Boiling Points The following table...Ch. 4 - Mobile Service Provider A mobile phone service has...
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