Array bounds checking should be directly coded into a system rather than assumed.

How to write a C++ program that allows a user to enter their rating of the three movies in the Dark Knight Trilogy and then disp

8_murik_8 [283]

The program is an illustration of arrays.

Arrays are used to hold multiple values in one variable.

The program in C++ where comments are used to explain each line is as follows:

#include <iostream>

using namespace std;

int main(){

//This declares an array of three elements for the three ratings

int ratings[3];

//This initializes the sum of the ratings to 0

int total = 0;

//The following iteration gets input for the three ratings

for(int i = 0; i<3;i++){

cin>>ratings[i];

//This calculates the sum of all inputs

total+=ratings[i];

}

//This declares and initializes the lowest and the highest ratings

int lowest = ratings[0], highest = ratings[0];

//This iterates through the array

for(int i = 1; i<3;i++){

//The following if condition determines the lowest rating

if (lowest > ratings[i]){ lowest = ratings[i]; }

//The following if condition determines the highest rating

if (highest < ratings[i]){ highest = ratings[i]; }

}

//This prints the output header

cout<<"The ratings are: ";

//The following iteration prints the three ratings

for(int i = 0; i<3;i++){

cout<<ratings[i]<<" "; }

//The prints the highest ratings

cout<<endl<<"Highest: "<<highest<<endl;

//The prints the lowest rating

cout<<"Lowest: "<<lowest<<endl;

//The prints the average rating

cout<<"Average: "<<total/3<<endl;

return 0;

}

At the end of the program, the ratings entered, the highest rating, the lowest rating, and the average of the ratings are printed.

See attachment for sample run

Read more about similar programs at:

brainly.com/question/13261254

8 0

2 years ago

The intention of this problem is to analyze a user input word, and display the letter that it starts with (book → B).

yulyashka [42]

Answer:

Here is the C++ program:

#include<iostream> // to use input output functions

using namespace std; //to identify objects like cin cout

void StartChar(string str) { // function that takes a word string as parameter and returns the first letter of that word in capital

int i;

char c;

do //start of do while loop

{

for (int i = 0; i < str.length(); i++) { //iterates through each character of the word str

if(str.length()>25){ //checks if the length of input word is greater than 25

cout<<"limit exceeded"; } //displays this message if a word is more than 25 characters long

c = str.at(i); // returns the character at position i

if (! ( ( c >= 'a' && c <= 'z' ) || ( c >= 'A' && c <= 'Z' ) ) ) { //checks if the input word is contains characters other than the alphabet

cout<<str<<" is not a word!"<<endl; break;} //displays this message if user enters characters other than the alphabet

if (i == 0) { //check the first character of the input word

str[i]=toupper(str[i]); //converts the first character of the input word to uppercase

cout<<str<<" starts with letter "<<str[i]<<endl; } // prints the letter that the word starts with in capital letter

} cout<<"Enter a word: "; //prompts user to enter a word

cin>>str; //reads input word from user

}while(str!="#"); } //keeps prompting user to enter a word until the user enters #

int main() //start of the main() function body

{ string str; //declares a variable to hold a word

cout<<"Enter a word: "; //prompts user to enter a word

cin>>str; //reads input word from user

StartChar(str); } //calls function passing the word to it

Explanation:

The program prompts the user to enter a word and then calls StartChar(str) method by passing the word to the function.

The function StartChar() takes that word string as argument.

do while loop starts. The for loop inside do while loop iterates through each character of the word string.

First if condition checks if the length of the input word is greater than 25 using length() method which returns the length of the str. For example user inputs "aaaaaaaaaaaaaaaaaaaaaaaaaaa". Then the message limit exceeded is printed on the screen if this if condition evaluates to true.

second if condition checks if the user enters anything except the alphabet character to form a word. For example user $500. If this condition evaluates to true then the message $500 is not a word! is printed on the screen.

Third if condition checks if the first character of input word, convert that character to capital using toupper() method and prints the first letter of the str word in capital. For example if input word is "Computer" then this prints the message: Computer starts with the letter C in the output screen.

The program keeps prompting the user to enter the word until the user enters a hash # to end the program.

The output of the program is attached.

3 0

3 years ago

The variables xp and yp have both been declared as pointers to integers , and have been assigned values (i.e., they are each poi

Amanda [17]

Answer:

Following code are:

int *temp; //declaration of variable

// perform swapping

temp = xp;

xp = yp;

yp = temp;

Explanation:

we declare an integer data type pointer variable "*temp" then perform swapping between them.

The variables "xp" and "yp" are already declared and these variables are performing swapping among three.

6 0

3 years ago

Assume that a program uses the named constant PI to represent the value 3.14. The program uses the named constant in several sta

mihalych1998 [28]

Answer:

The advantage for the above condition is as follows:-

Explanation:

If a user creates a defined constant variable and assigns a value on its and then uses that variable instead of the value, then it will a great advantage.
It is because when there is a needs to change the value of that variable, then it can be done when the user changes the value in one place. There is no needs to change the vale in multiple places.
But if there is a value in multiple places instead of a variable and there is no constant variable, then the user needs to change the value in multiple places.

7 0

3 years ago

47. Which of these examples demonstrates good netiquette?

Masteriza [31]

Answer:

typing it, on a video detailing how boring and poorly made it is

Explanation:

this is an example of good netiquette because they are criticizing the video game and what good netiquette is is making a comment relevant to the original message. the original message being the video game

3 0

3 years ago