1)The C++11 standard library provides access to a unique_ptr type. How does this object behave differently than a shared_ptr object? When would one use one over the other?
Pointers in C++
Hence, these are the times when one must make use of the unique_ptr and shared_ptr to make them work effectively in the program.
1)The C++11 standard library provides access to a unique_ptr type. How does this object behave differently...
1. In ANSII standard C++, there is no library function to convert an integer to a string. Your program should develop such a function. In other words complete the following program using your itos function. (Use of other C functions is prohibitted) // this program will read in an integer and convert it to a string #include <iostream> #include <cstdlib> #include <string> using namespace std; string itos(int n) { } int main(int argc, char* argv[]){ int n = atoi(argv[1]); cout...
1. When a sub class object is created, when is the call to the super class constructor made? How does a programmer call the super class constructor from the sub class? What do all classes indirectly extend? What methods does every class inherit from the Object class? 2. When writing methods in a sub class, how can those methods call the methods from the parent class? 3. Which class is more specific, a super class or a sub class? 4. ...
C++ Language 1. Match the description / meaning with the C++ syntax. - A. B. C. D. E. external class or method that can access private members - A. B. C. D. E. scope resolution operator - A. B. C. D. E....
1. What are type I and type II errors? 2. How do we determine the critical numbers and/or critical regions for a hypothesis test? 3. Explain when to use a 2-test, a t-test, a x-test, and an F-test. 4. How does decreasing the significance level affect the probability of a type I error? 5. If the correlation between two variables is significant, does one cause the other? 6. What does measure? 7. A real estate agent believes that the average...
Please describe the difference between classes and objects. How are they related? What does it mean to instantiate an object? Also, please describe the difference between composition and aggregation and when it is better to use one over the other?
2. (5 points) Java provides a WeakHashMap and C++ permits weak_ptr objects. How do these weak references differ than than the standard Java reference or C-style pointer? In what applications might one use a weak reference?
Powers of 11 2. a. Use the Binomial Theorem on powers of (10+1) to demonstrate that the numbers b. At what point does the pattern not continue? Why does the pattern no longer c. Compute 11 x 11 using the standard algorithm for multiplication. Do likewise d. Explain how the standard algorithm for multiplication of powers of 11 relates to in the first few rows of Pascal's Triangle resemble the digits of the powers of 11 work? with 121 x...
1. Create an “include guard” (all lines of code required) for a file “plane.h” 2. When you look at a constructor, how can you determine if it is THE default constructor? 3. What can a “friend” function do that other non-member functions can not do? 4. class plane { int x;} ---------------- is x public or private? 5. What kind of a search first sorts the data into ascending or descending order, then splits the data in half, searches, splits,...
1. Describe how a Windows Store app is displayed differently from a Windows application. 2. Instead of icons, Windows Store apps are launched by tapping or clicking _________. 3. What is the file extension of an app package in the Windows Store? 4. What does touch-first mean when using Windows Store apps? 5. How many touch points does a Windows 8 device typically have? 6. Windows Store apps can be written in which programming languages? 7. What does XAML stand...
Program Overview This brief exercise is designed for you to consider how reference variables behave when you are passing them as arguments by-value. Instructions Name your class References.java. 1. Implement the following methods. 1.1 Method name: readStudentNames Purpose: This method accepts an array of strings as a parameter. It loops through the array and asks the user to input names. It populates the array of strings with the names. Parameters: an array of Strings, stringArray Return type: void In the...