getine command skipping help!!!

I'm using getline to receive some characters but it skips out on receiving some of the data. In detail the program skips out asking for the course code the 1st time.
Here is the code:

Code:

---

// This function is to be used to get the courses completed at the end of each semester and save the information to a file (includes course code, course name, letter grade.

#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()

{
  ofstream myfile;

  int numCourse;
  char courseCode[20];
  char courseName[20];
  char letterGrade[5];

  myfile.open ("completed.txt");

  cout<<"How many courses have you done this semester?"<<endl;
  cin>>numCourse;

  for(int i=0;i < numCourse;i++)
  {
    cout<<"Please enter course code"<<endl;
    cin.getline(courseCode,20);
    myfile<<courseCode[20]<<"  ";


    cout<<"Please enter course name"<<endl;
    cin.getline(courseName,20);
    myfile<<courseName[20]<<"  ";

    cout<<"Please enter your letter grade"<<endl;
    cin.getline(letterGrade,5);
    myfile<<letterGrade[5]<<"  \n";


  }

      myfile.close();

      return 0;
}

---

Your assistance would be greatly appreciated. Thanks in advance!!

Code:

---

cin>>numCourse;

  for(int i=0;i < numCourse;i++)
  {
    cout<<"Please enter course code"<<endl;
    cin.getline(courseCode,20);

---

This is actually a common problem that's asked about here. The issue is that first cin line highlighted in red above. The newline character is left in the input stream by that command and the first time through the for loop, the getline call sees that newline and thinks that the user pressed the enter key which makes things look like the command was skipped. The usual solution is that whenever you start mixing straight cin >> statements with getline calls you need to call the stream's ignore member function after the cin >>.

WOW! Thanks. I never thought of that possibility. Thank you so much!