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Concept explainers
Pointer in C++:
A pointer is a variable whose value will be another variable’s address. Generally, a pointer variable is declared as follows:
type *var-name;
Here, “type” is the pointer’s base type and “var-name” is the pointer variable name. The asterisk is used to designate a variable as a pointer.
The delete operator:
The delete operator is used to destruct the object that is created with new by deallocating the memory associated with the object.
The syntax of delete operator is as follows:
[] delete cast-expression
[] delete[] cast-expression
In the above statement, the “cast-expression” argument must be a pointer to a block of memory previously allocated for an object created with the new operator.
Given code:
The following code is used to create a dynamic array.
int *entry; //Initialise pointer
entry = new int[10]; //create a dynamic array
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Chapter 9 Solutions
Problem Solving with C++ (10th Edition)
- THIS IS NOT A GRADING ASSIGNMENT: Please only do lab 2.2 (bottom part of the first picture) For that Lab 2.2 do: *Part 1 (do the CODE, that's super important I need it) *Part 2 *Part 3 I also attached Section 2.5.2 which is part of the step 1 so you can read what is it about. Thank you!arrow_forwardTHIS IS NOT A GRADING ASSIGNMENT: Please only do lab 2.2 (bottom part of the first picture) For that Lab 2.2 do: *Part 1 *Part 2 *Part 3 I also attached Section 2.5.2 which is part of the step 1 so you can read what is it about. Thank you!arrow_forwardcan you please give me: * the code (step 3) *the list file (step 5) *and answer step 6 Thank youarrow_forward
- # Find the error# Why will the following code not print out a list of contact namesphoneBook = {'Doe, Jane' : '843-000-0000' ,'Doe, John' : '843-111-1111' ,'Smith, Adam' : '843-222-2222' ,'Jobs, Steve' : '999-333-3333' ,}for contact in phoneBook.values():print(contact)arrow_forward# Find the error:# The following code creates an empty dictionary and attempts to add a record# Why will the following code not create a new dictionary entry as intended?phoneBook = {}phoneBook{'Jobs, Steve'} = '999-111-1111'arrow_forwardSelect all the possible polar representations of the vector that is obtained from rotating where by Zrot Ź x = 3e² T= 3п 8 Hint: Consider the negative angle that is equivalent to the positive angle of the rotated vector. 0arrow_forward
- Character Analysis If you have downloaded the source code you will find a file named text.txt on the Chapter 08 folder. Write a program that reads the file's contents and determines the following: The number of uppercase letters in the file The number of lowercase letter in the file The number of digits in the file The number of whitespace characters in the filearrow_forwardWrite a program that reads the text file's contents and calculates and outputs the following in this order: • The number of words in the file • The number of lines in the file • The number of uppercase letters in the file • The number of lowercase letters in the file • The number of digits in the file • The number of letter H's in the file • The number of whitespace characters in the file NOTE: Your program should include at least one try-except error handling statement block. Your program should also validate any input that could cause your program to crash. I'm Henery The Eighth, I Am! Henery The Eighth, I Am, I am!I got married to the widow next door,She's been married seven times before.And ev'ryone was a Henery,She wouldn't have Willie or a Sam.I'm her eighth old man named Henery,Henery the Eighth, I Am!Second verse same as the first!I'm Henery The Eighth, I Am! Henery The Eighth, I Am, I am!I got married to the widow next door,She's been married seven times before.And…arrow_forwardFigure 4-40 Modern Database Management, 13th edition, question 4-53arrow_forward
- Which of the following needs improvement in the dashboard shown? A. Instructional clarity missing for the views B. Filter placed at the top of the dashboard C. Inconsistent use of colors to represent missed goals D. Dashboard title too largearrow_forwardIf we click Show dashboard title in this dashboard, what will the title be?arrow_forwardPlease draw the diagram where it is asked to be drawn. Don't just describe how to do it.arrow_forward
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