Thread: constructor problems

why do i keep getting this error that says theres not appropriate default constructor for the LabCourse?

Code:

#include<iostream.h>
#include<string.h>


class CollegeCourse
{
	protected:
		char department[3];
		int courseNumber;
		int creditHours;
		double tuition;
	public:
		CollegeCourse(const char dept[],const int course,const int hours,const double tuit);
		void showCollegeCourse();
};
class LabCourse:public CollegeCourse
{
	private:
		double fee;
	public:
		LabCourse(const char dept[], const int course, const int hours, const double tuit);
		void showLabCourse();
};

CollegeCourse::CollegeCourse(const char dept[],const int course,const int hours,const double tuit)
{
	strcpy(department, dept);
	courseNumber=course;
	creditHours=hours;
	tuition=tuit;
};
LabCourse::LabCourse(const char dept[], const int course, const int hours, const double tuit)
{
	strcpy(department, dept);
	courseNumber=course;
	creditHours=hours;
	tuition=tuit;
	fee=10.25;
};
void CollegeCourse::showCollegeCourse()
{
	cout<<department<<courseNumber<<" "<<creditHours<<" credits.  Tuition $"<<tuition<<endl;
}
void LabCourse::showLabCourse()
{
	cout<<department<<courseNumber<<" "<<creditHours<<" credits.  Tuition $"<<tuition<<endl;
	cout<<"Plus a lab fee of $"<<fee<<endl;
}

void main()
{

  CollegeCourse cc("ENG",121,3,333.33);

  LabCourse lc("CIS",250,4,444.44);

  cc.showCollegeCourse();

  lc.showLabCourse();


 }

i would love to write it the right way, but i dont understand whats wrong with it. the book tells me to write this program and then it doesnt say how to use the constructors in sub classes.