Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Textbook Question
Chapter 8.4, Problem 8.6PP
Practice Problem 8.6 (solution page 797)
Write a
linux>./myecho arg1 arg2
Command-ine argument :
argv [0]: myecho
argv [1]: arg1
argv [2]: arg2
Environment variables
envp [0] : PWD = /usro/droh/1GB/code/ec1
envp [1] : TERM= emacs
.
.
.
envp [25] : USER = droh
envp [26] : SHELL = /usr/local/bin/tech
envp [27] : HOME -= usr0/droh
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CE102 Homework 2
Description:
You are tasked with creating a C++ program for managing a virtual pet store. The program should
implement a simple user interface and utilize loops, if-else statements, and input-output functions. Your
objective is to design and implement the following structure:
Pet Class:
✓ Attributes:
name: string (private)
type: string (private)
age: integer (private)
hungerLevel: integer (private)
happinessLevel: integer (private)
✓ Enum Definition:
Create an enum to represent different types of pets. The enum should include options such as
"DOG", "CAT", "BIRD", etc., corresponding to common types of pets that can be managed in the
virtual pet store program. Use this enum to specify the type of each pet when creating instances of
the Pet class.
✓ Member Functions:
⚫ Constructor:
⚫ Parameters: name (string), type (string), age (integer)
•
feed:
Functionality: Initializes the pet with the provided details and default hunger and
happiness levels.
Parameters:…
C++ 13.9.2 Pass by reference
Define a function ScaleGrade() that takes two parameters:
points: an integer, passed by value, for the student's score.
grade: a char, passed by reference, for the student's letter grade.
ScaleGrade() changes grade to A if the points are greater than or equal to 88 and less than or equal to 100, and grade is not A. Otherwise, grade is not changed. The function returns true if grade has changed, and returns false otherwise.
Ex: If the input is 88 B, then the output is:
Grade is A after curving.
Using the following code
#include <iostream>using namespace std;
// insert code here
int main() { int studentPoints; char studentGrade; bool isChanged;
cin >> studentPoints; cin >> studentGrade;
isChanged = ScaleGrade(studentPoints, studentGrade);
if (isChanged) { cout << "Grade is " << studentGrade << " after curving." << endl; } else { cout << "Grade " << studentGrade…
CHALLENGE
ACTIVITY
7.6.1: Output of functions with branches/loops.
461710.3116374.qx3zqy7
Jump to level 1
Check
1
Next
Type the program's output
def print_message (message) :
if len (message) > 5:
print ('too long')
print (message)
print_message ('Look!')
print_message ('Where are you?')
else:
2
Chapter 8 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 8.2 - Prob. 8.1PPCh. 8.4 - Prob. 8.2PPCh. 8.4 - Prob. 8.3PPCh. 8.4 - Prob. 8.4PPCh. 8.4 - Practice Problem 8.5 (solution page 797) Write a...Ch. 8.4 - Practice Problem 8.6 (solution page 797) Write a...Ch. 8.5 - Practice Problem 8.7 (solution page 798) Write a...Ch. 8.5 - Prob. 8.8PPCh. 8 - Prob. 8.9HWCh. 8 - In this chapter, we have introduced some functions...
Ch. 8 - How many hello output lines does this program...Ch. 8 - How many "hello' output lines does this program...Ch. 8 - Prob. 8.13HWCh. 8 - How many hello output lines does this program...Ch. 8 - How many "hello lines does this program print?Ch. 8 - Prob. 8.16HWCh. 8 - Prob. 8.17HWCh. 8 - Consider the following program: Determine which of...Ch. 8 - How many lines of output does the following...Ch. 8 - Use execve to write a program called my1s whose...Ch. 8 - What are the possible output sequences from the...Ch. 8 - Write your own version of the Unix system function...Ch. 8 - One of your colleagues is thinking of using...Ch. 8 - Modify the program in Figure 8.18 so that the...Ch. 8 - Write a version of the fgets function, called...
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