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- Here's the difference between a void pointer and a NULL pointer: Provide relevant instances to back up your claim.Differences between void and NULL pointers are as follows: Provide relevant instances to back up your claim.The equals () method is used to: see if two objects have the same content compare two primitive data type values see if two objects have the same reference assign a content to an object
- In C++, write a Employee class with id, name and salary; declare 3 dynamic objects (pointer and new keywords) and push them to the vector and print the vector.Differentiate between null andwild pointer and also tell thathow you overcome thesituation of wild pointer that itis pointing any memorylocation.Implement a function writeEmpToFile that takes two arguments: a struct Employee pointer and a FILE *. It should write each field in order as an appropriate type. Note that you will probably want to write a length of the name before you write the characters of the name. By doing this, when you write the load function below, you can read the length of the string and use it to malloc a buffer of the proper size to hold the name. Because of the embedded name pointer, you CAN NOT write the Employee struct as a single struct. You will need to write it out field by field. You will want to write this as a binary file, not as a text file. Implement a SAVE command in your main loop that will save all the employees out to a file. The SAVE command should ask for a file name, similar to the way your FIND command asked for a name. Below is the work I have done so far that is required from the image but I have not been able to finish it and I need assistance with making the final changes that…
- write a program to show 2 dead objects in student class. Also, call garbage collector using System.gc() to collect dead objects. Call finalize function for each dead object collectionsIn C Programming: Write a function printCourseRow() which receives a course pointer and prints all its fields as a single row. Use proper formatting so that when we print 2 or more courses as rows, the same members align below each other. Test the function, but don’t include the testing code in your homework.Upload a screenshot of a sample output.1] When does the void pointer can be dereferenced? A.when it doesn't point to any value B.when it cast to another type of object C. using delete keyword D. none of the mentioned
- Write a smart pointer class. A smart pointer is a data type, usually implemented with templates, that simulates a pointer while also providing automatic garbage collection. It automatically counts the number of references to a SmartPointer<?> object and frees the object of type T when the reference count hits zero.solve this in python3 5. Write a Python function named add_vegetable that is passed a (possibleempty) set of vegetable names and raises a ValueError exception if the giventhe vegetable is already in the set, otherwise, add the vegetable and return a new set.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?