a) Type the implementation file Matrix.cpp, compile your files and get an application file. Hint: the use of the float* data pointer for a matrix object can be understood with the help of the following empty constructor function Matrix::Matrix () // initialize Matrix class object with rowN=1, colN=1, and zero value { } rowN=1; colN=1; data-new float [rowN*colN]; for (int i=0; i

a) Type the implementation file Matrix.cpp, compile your files and get an application file. Hint: the use of the float* data pointer for a matrix object can be understood with the help of the following empty constructor function Matrix::Matrix () // initialize Matrix class object with rowN=1, colN=1, and zero value { } rowN=1; colN=1; data-new float [rowN*colN]; for (int i=0; i

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Programming Language: C++ Make a program wherein you have to create an Abstract Data Type, which will store 2 integer number. After that, make operations which will set the value of the two numbers, add, subtract, multiply and divide. After creating the abstract data type, use it in the main class. Ask the user for the value of two integers. Ask the user what operation to use, then call the necessary operation based on the user's input. Then display the answer with the correct label. Do not copy paste codes from other sites.
: A designer in 3D graphics company wants to design a matrix as a two-dimensional array. The size of 2D array could be the last two digit of arid number. Initially he creates a class matrix that provides the member function to check that no array index is out of bounds. Make the member data in the matrix class a 10-by-10 array. A constructor should allow the programmer to specify the actual dimensions of the matrix (provided they’re less than 10 by 10). The member functions that access data in the matrix will now need two index numbers: one for each dimension of the array. Here’s what a fragment of a main() program that operates on such a class might look like: If my Arid Number is 20-Arid-254 then: // in case of zero consider next digit matrix m1(5, 4); // define a matrix object int temp = 12345; // define an int value m1.put(3, 4, temp); // insert value of temp into matrix at 3,4 temp = m1.get(3, 4); // obtain value from matrix at 3,4
A pointer variable is just what it sounds like. What is its purpose? Exactly what does it mean to have a "dynamic array"? Pointers and dynamic arrays have what relationship?
C++. Solution with explanation please.
create using c++ One problem with dynamic arrays is that once the array is created using the new operator the size cannot be changed. For example, you might want to add or delete entries from the array similar to the behavior of a vector . This project asks you to create a class called DynamicStringArray that includes member functions that allow it to emulate the behavior of a vector of strings. The class should have the following A private member variable called dynamicArray that references a dynamic array of type string. A private member variable called size that holds the number of entries in the array. A default constructor that sets the dynamic array to NULL and sets size to 0. A function that returns size . A function named addEntry that takes a string as input. The function should create a new dynamic array one element larger than dynamicArray , copy all elements from dynamicArray into the new array, add the new string onto the end of the new array, increment size, delete the…
A designer in 3D graphics company wants to design a matrix as a two-dimensional array. The size of 2D array is 44 . Initially he creates a class matrix that provides the member function to check that no array index is out of bounds. Make the member data in the matrix class a 10-by-10 array. A constructor should allow the programmer to specify the actual dimensions of the matrix (provided they’re less than 10 by 10). The member functions that access data in the matrix will now need two index numbers: one for each dimension of the array. Here’s what a fragment of a main() program that operates on such a class might look like: If my Arid Number is 20-Arid-744 then: // in case of zero consider next digit matrix m1(4, 4); // define a matrix object int temp = 12345; // define an int value m1.putel(7, 4, temp); // insert value of temp into matrix at 7,4 temp = m1.getel(7, 4); // obtain value from matrix at 7,4
Please read the C++ vectors to learn about vectors in C++ and to find the answer to this question. Match the member functions of vectors on left with the correct description on right. Hint: Please follow the exact wording in the read. erase emplace_back capacity assign empty Search [Choose ] Choose] Return size of allocated storage capacity Returns the number of elements in the vector. Construct and insert element at the end Removes from the vector either a single element (position) or a range of elements ([first, last)). Removes all elements from the vector (which are destroyed), leaving the container with a size of 0. Assigns new contents to the vector, replacing its current contents, and modifying its size accordingly. Returns whether the vector is empty (i.e. whether its size is O). [Choose ] [Choose ] 2
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