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- Answer the question with C - language. Question. In the following code, assume that all function calls are successful. void sigusr1_handler(int sig) { } int main(void) { pid_t child; if ((child = fork()) == 0) { struct sigaction sa; sa.sa_handler = sigusr1_handler; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); sigaction(SIGUSR1, &sa, NULL); while (1) { printf("working ...\n"); sleep(1); } } else { //line 19 sleep(30); } // line 22 return 0; } (a) If you run the above program can it create either an orphan or a zombie process? Explain how. (b) Insert statements in only the part of the code related to the parent process (Lines 19–22) and function siguse1_handler() so that the child process would end after about 30 seconds of running. Clearly indicate where you insert any statements. thank you for your timeWrite a program in C++ using OOP, to create a class (student), that contain a private data (name, five grads). then create the following function: 1) (set_info()) to read the private data 2) (Print_info()) to Print student name and grades. 3) (Grade E()) as a friend function that calculate the grades average and print the student evaluation according to the following conditions: FAIL when (av=60 and av=70 and av 80 and av=90)Write a C++ program in which a class having two data members of integer type and three functions input, output and operator overloading functions, these functions will perform the following tasks: Input function initializes the data member a = 100 and b = 22. Use ‘- ‘operator as a function to decrement the vales of object using Unary operator. Output function displays the results.
- Create program of your own choice in C++, which include. Polymorphism, Encapsulation, multiple inheritance, static variables and static functions? i need these polymorphism, Encapsulation, Multiple inheritance, static variables and static functions in a single program? Please solve it.What is operator overloading used for?A. When a program makes too many function calls to the operating system.B. To create data structures.C. To use operators, such as the plus sign (+), on different types of data to simplify code.D. Inheritance.Give an example of an overloaded operator (in C++ or Python– but not overloaded by a function). Explain why it is overloaded. a simple example is preferred!
- Write a simple function template using C++ with a focus on functions, parameters, and class tenplates. Please explain the example thank you.Consider the following defintion: data Term = Var String | Application Term Term | Lambda String Term Construct a Haskell function: alphaRename :: Term -> String -> Term Where it performs an alpha renaming. (alphaRename t x) substitutes x for the formal parameter of t, which must be a lambda expression. You can assume that x is not free in t, i.e., not free in the body of t. Please provide your function code with an example input for the above operation.Topic: Concepts of programming Language 4. a) Consider the following JavaScript program: var a, y, c;function sub1() {var b, z, c;function sub2() {var a, b, y;. . .}. . .}function sub3() {var a, x, w;. . .}List all the variables, along with the program units where they are declared,that are visible in the bodies of sub2 when the sequence of function call is:“sub1 calls sub3 and sub3 calls sub2”, assuming dynamic scoping is used.
- Write static function in C# that displays the following pattern and call it in main function which is in another class 1 2 3 4 5 2 3 4 5 6 3 4 5 6 7in c++ , fix all bugs or mistakes in code and explain in comments what was wrong and how you fix it (there can be problems with semi-columns, curly braces, included libraries, wrong usage of functions, inproper conversion of datatypes and etc.) Comment all changes in code and show the outputIN C++ To gain a better understanding of polymorphic and virtual functions start with the following simple example. Notice we have not defined a virtual function yet. // Part1.h. Note, this header file will have TWO classes declared.#include <iostream>using namespace std;class Base{public:void testFunction ();};class Derived : public Base{public:void testFunction ();};// Part1.cpp. Note this implementation file will have TWO class defined.#include "Part1.h"void Base::testFunction (){cout << "Base class" << endl;}void Derived::testFunction (){cout << "Derived class" << endl;}// main.cpp #include "Part1.h"int main(){Base* ptr = new Base;ptr -> testFunction (); // prints "Base class"delete ptr;ptr = new Derived;ptr -> testFunction (); // prints "Base class" because the base class // function is not virtualdelete ptr;return 0;} Now modify the code with the following (all other code should remain the same). class Base{public:virtual void testFunction…