Concept explainers
Array of structures:
In C++, it is possible to create an array of structure. It is used to store a group of records contains multiple data members of various data type. A single array of structure can replace many arrays of regular type variable.
- Array of structures can be defined like normal array.
The structure array is declared through the following format:
struct_name variable[size];
Consider the following array definition:
//Declaration of structure array
Car values[5];
- In the above example, “Car” represents the structure type of the array, “values[]” is the array name, and the number inside the brackets is the size declaratory of the array.
Subscript of an array:
In C++, array elements can be accessed using a subscript. In an array, each element assigned with the unique number, which is specified inside the brackets, is referred to as a subscript.
- By default, structure members are defined as public. Hence structure members can be accessed by place the dot operator (.) and member name after the array subscript.
Example:
//Assign the value for model member of values[2].
values[2].model= "New"
- In above statement, the value “New” is assigned in the third element ofthe values array for model member.
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
Starting Out With C++: Early Objects (10th Edition)
- QUESTIONS- 1. Create and array of objects named movies . Each of the objects in the array will represent a movie.Each object should have properties for:movie titlerelease yearrating (your rating 1 - 10)genres (an array of genres. eg ["Drama", "Mystery", "Sci-Fi", "Western"] )The array should contain at least 5 of movies you have seen (choose your own movies)You do not need to use JSON to create this arrayYou can use IMDB if you need help finding the info for your movie2. Now that digital format is taking over, we would like to add a property to each object for the format (“film” or“digital”). The property will be called format . Assuming that all movies in our data set where shot on film, use.forEach() to add the property and set a value of “film” for each movie.3. Use the .map() method to create an array of movie titles from our initial data set named movieTitles .4. Use the .reduce() method to find the highest and lowest rated movies in the data set. Store these objects invariables…arrow_forward(Electrical eng.) Write a program that declares three one-dimensional arrays named volts, current, and resistance. Each array should be declared in main() and be capable of holding 10 double-precision numbers. The numbers to store in current are 10.62, 14.89, 13.21, 16.55, 18.62, 9.47, 6.58, 18.32, 12.15, and 3.98. The numbers to store in resistance are 4, 8.5, 6, 7.35, 9, 15.3, 3, 5.4, 2.9, and 4.8. Your program should pass these three arrays to a function named calc_volts(), which should calculate elements in the volts array as the product of the corresponding elements in the current and resistance arrays (for example ,volts[1]=current[1]resistance[1]). After calc_volts() has passed values to the volts array, the values in the array should be displayed from inside main().arrow_forwardTOPIC: Passing Array to a Method and Returning Create a program that will determine the Second Largest number and the Second Smallest Number in an array Display the second largest and second smallest.arrow_forward
- Create a struct called Booking that consists of a 3 digit flight number (e.g. 234), type of seat (E or B), the price of a seat in economic class and the number of seats booked. Declare an array to store at least 30 Booking structs.arrow_forwardPseudocode for the student grade calculator program, please Create a program to enter grades and calculate averages and letter grades. Need a class which will contain: Student Name Student Id Student Grades (an array of 3 grades) A constructor that clears the student data (use -1 for unset grades) Get functions for items a, b, and c, average, and letter grade Set functions for items a, n, and c Note that the get and set functions for Student grades need an argument for the grade index. Need another class which will contain: An Array of Students (1 above) A count of number of students in use You need to create a menu interface that allows you to: Add new students Enter test grades Display all the students with their names, ids, test grades, average, and letter grade Exit the program Add comments and use proper indentation. Nice Features: I would like that system to accept a student with no grades, then later add one or more grades, and when all grades are entered, calculate the…arrow_forwardAn array's index type may be any form of data. Do you think this is true or not?arrow_forward
- C# Question Write a statement that declares an array of integers called lotteryPicks and assigns it to the value returned from calling a method named FillArray. The method takes a 3 value parameters, a string called prompt and 2 integers called low and high. Use the following literal values, “lottery numbers”, 1 and 69 as actual parameters in the callarrow_forwardWrite a program that shows Game sales. The program should use a structure to store the following data about the Game sale: Game company Type of Game (Action, Adventure, Sports etc.) Year of Sale Sale Price The program should use an array of at least 3 structures (3 variables of the same structure). It should let the user enter data into the array, change the contents of any element and display the data stored in the array. The program should have a menu driven interface. Input Validation: When the data for a new game sale is entered, be sure the user enters data for all the fields. No negative amounts should be entered for a “Sale Price” of the Game An example: You will use 1 structure only and then manipulate that for working with the information. The program should use an array of at least 3 structures (3 variables of the same structure). An example of the structure:struct Game{string name;string type;int year;double price;}; So far I have written that ...arrow_forwardWrite a statement that declares a class-level two-dimensional array named intOrders. The array should contain five rows and three columns.arrow_forward
- Code Should Be in Java: use loops, if statements, arrays, scanner etc Write an application that stores at least five different college courses (such as CIS101), the time it first meets in the week (such as Mon 9 am), and the instructor (such as Johnson) in a two-dimensional array. Allow the user to enter a course name and display the corresponding time and instructor. If the course exists twice, display details for both sessions. If the course does not exist, display an error message. Save the file as TimesAndInstructors.javaarrow_forwardWhat is sent into the parameter variable when an array is supplied as an argument?arrow_forwardCreate a struct called Booking that consists of a 3 digit flight number (e.g. 234), type of seat (E or B), the priceof a seat in economic class and the number of seats booked.Declare an array to store at least 30 Booking structs. The user must be able to enter the information for a number of bookings from the keyboard. Ask whether abooking must be made (Y or N). If a booking must be made, a random 3 digit flight number must be generated.The user must be asked to enter the type of seat, the price per seat and the number of seats to book. Example of input: Make a booking (Y or N): Y Type of seat (E or B): e Price per seat : 1200 Number of seats: 2 Make another booking (Y or N): y Type of seat (E or B): b Price per seat : 3400 Number of seats: 2 Make another booking (Y or N): y Type of seat (E or B): e Price per seat : 1400 Number of seats: 3 Make another booking (Y or N): y Type of seat (E or B): e Price per seat : 1300 Number of seats: 2 Make another booking (Y or N): y Type of…arrow_forward
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTProgramming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage LearningMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr