When the compiler first sees a class template, how many instances (classes) are created from the template?
Answer: Zero. compiler only creates instances (classes) if it sees objects of specific type created. if objects using int, double, char as template type with the class are created, then compiler generates 3 instances of the template class which is compatible with these types.
When the compiler first sees a class template, how many instances (classes) are created from the...
12. Consider C++ class. Which one of the following choices is NOT correct? A. Class instances can be static, stack dynamic, or heap dynamic. B. If static or stack dynamic, they are referenced directly with value variables. C. If stack dynamic, they are referenced through pointers. D. Stack dynamic instances of classes are always created by the elaboration of an object declaration. E. The lifetime of such a class instance ends when the end of the scope of its declaration...
How do i make a makefile for 2 template classes in c++ ? for example i have template <class T> class item { private: T value // other code }; and template <class T> class drive { private: item<T>* node; //more code };
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. ...
Consider the following template class: template <typename T> class ArrayOfTen { public: ArrayOfTen(); ~ArrayOfTen(); void insert(T); void printAll(); private: T * array; int size; } a. When the array is first created, it should allocate memory for 10 items. Size should be zero. Write the constructor: b. When ArrayOfTen::insert(T) is called, the new item should be added to the array, and size should increase by one. If the array already has 10 items, then it should throw an exception. Write...
About Classes and OOP in C++ Part 1 Task 1: Create a class called Person, which has private data members for name, age, gender, and height. You MUST use this pointer when any of the member functions are using the member variables. Implement a constructor that initializes the strings with an empty string, characters with a null character and the numbers with zero. Create getters and setters for each member variable. Ensure that you identify correctly which member functions should...
//This is the implementation file queue.cpp. //This is the implementation of the template class Queue. //The interface for the template class Queue is in the header file queue.h. #include <iostream> #include <cstdlib> #include <cstddef> #include "queue.h" using std::cout; namespace QueueSavitch { //Uses cstddef: template<class T> Queue<T>::Queue( ) : front(NULL), back(NULL) { //Intentionally empty. } //Uses cstddef: template<class T> bool Queue<T>::isEmpty( ) const { return (back == NULL);//front == NULL would also work } //Uses cstddef: template<class T> void Queue<T>::add(T item)...
Let's begin by discussing how an interface class differs from a concrete class, how interface classes are defined, and what does implementing an interface class mean!
I have a simple C++ RPC that lets you have remote class instances that support live members (data structures) update as well as method calls. For example I had a class declared like this (pseudocode): class Sum{ public: RPC_FIELD(int lastSum); RPC_METHOD(int summ(int a, int b)) { lastSum = a + b; return lastSum; } }; On machine A I had its instance. On machines B and C I had created its instances and connected...
The Coin Tossing simulation Coin.java The Coin class must be the enum class, defining the instances HEADS and TAILS. CoinTossing.java The CoinTossing class should be a simple class (with a main method) that uses the values provided by a Coin class, and performs a simulation of the tossing of a coin. There must be a separate (possibly static) flip method that takes no arguments and returns a value of the Coin class. The result returned from the flip method is...
JAVA basic quiz.
1. a) In order to run a java program, the computer must first compile the .java files to create .class files. Then the Java Virtual Machine (JVM) runs the .class files. After compilation, when the JVM first starts to run the program, what is created in memory first? When do instances of an object get created? How long do they stay in memory? Under what circumstances will the JVM delete an object from memory? b)What are the...