How to write binary data to a file?

Write a program to complete the following tasks and record the outputs to a data file named "transcript.dat"?

• Write a program to complete the following tasks and record the outputs to a data file named “transcript.dat". Headings (CourseNumber, Credit Hours and LetterGrade / NumericalGrade ) should be included in the outputs. (1) Read John’s transcript from “GPA.dat” (posted on Blackboard in Course Documents) and print the content to screen. (2) Write a module to generate random numerical grades for each course. Print the updated transcript (with numerical grades) to the data file. srand() must be applied in the program. ‘A’ : 100≥grade≥90 ‘B’ : 90>grade≥80 ‘C’ : 80>grade≥70 ‘D’ : 70>grade≥60 ‘F’ : 0≤grade<60 (3) Determine John’s GPA (GPA is calculated by dividing the total amount of grade points earned by the total amount of credit hours attempted). Grades Points ‘A’ 4 ‘B’ 3 ‘C’ 2 ‘D’ 1 ‘F’ 0 Here are my codes so, it just dosn't print the content from the data file. #include<iostream> #include<fstream> #include<iomanip> #include<string> #include<ctime> using namespace std; double rand_doub(int a, int b); int main() { const int size=10; string coursenumber[size]; //array int credithours[size], count=0; char lettergrade[size]; double numgrade[size]; string line; srand(unsigned (time(NULL))); // need to include ctime ifstream fin; ofstream fout; fin.open("GPA.dat"); getline(fin, line); cout<<line<<endl; fin>>coursenumber[count]>>credithours[co… while (!fin.eof())//build the array { count++; for(int i=0;i<count; i++) { numgrade[i] = rand_doub(0,100); cout<<setw(10)<<coursenumber[count]<<set… } fin>>coursenumber[count]>>credithours[co… } //assign numerical grade and print (fout) the whole list to a datafile // determine GPA fin.close(); fout.close(); system("pause"); } double rand_doub(int a, int b) { return(((double)rand()/RAND_MAX)*(b-a)+a… }

• Answer:

  can you post GPA.dat