trouble with template class

[bkoper16]

Im building a program that uses a template class called my data and utilizes overloaded operators for my c++ class
but for some reason when i implement the default constructor i get errors

Error 2 error LNK2001: unresolved external symbol "class MyData<int> __cdecl EqualsData(void)" (?EqualsData@@YA?AV?$MyData@H@@XZ) E:\C++\Brad Final Project\Brad Final Project\TestMyData.obj

Error 3 error LNK1120: 1 unresolved externals E:\C++\Brad Final Project\Debug\Brad Final Project.exe

can you help me find whats wrong

Here's the code:
MyData.h

#include<iostream>
using namespace std;
template <class T> class MyData
{
  T value;
public:
	//Constructors
	MyData(T t)
	{
		value = t;
	}
	MyData()
	{
		value = 0
	}
	//SetData
	void setData(T t)
	{
		value = t
	}
	//GetData
	T getData()
	{
		return value;
	}
	//Overload +
	MyData operator+(MyData op2)
	{
		return value+op2.value;
	}
	//Overload -
	MyData operator-(MyData op2)
	{
		return value-op2.value;
	}
	//Overload =
	MyData operator=(MyData op2)
	{
		value = op2.value;
	}
	//Overload >
	bool operator>(MyData op2)
	{
		if (value>op2.value)
	return true;
		else
			return false;
	}
	//Overload ++
	MyData operator++()
	{
	return	value++;
	
	}
	
	//Overload cin
template<class T>	friend istream &operator>>(istream &stream, MyData<T> &obj)
	{
		cout << "Enter data: ";
		stream >> obj.value;
		return stream;
	}
	
//Overload cout
template<class T>	friend ostream &operator<<(ostream &stream, MyData<T> &obj)
	{
		stream << obj.value;
		return stream;
	}


};

Main

#include<iostream>
using namespace std;
#include "MyData.h"

int main()
{
	int intValue = 12;
	MyData<int> intData(intValue);
	intData++;
	cout <<"integer incremented: " << intData<<endl;
	MyData<int> secondInt(3);
	cout<<"Sum of two integers: "<< intData+secondInt<<endl;
	cout<<"Difference of two integers: "<< intData-secondInt<<endl;
	MyData<int> EqualsData();
	cout<<"Test default constructor: "<< EqualsData();
	//EqualsData = secondInt;
	//cout<<"Test == function: "
	if (intData >  secondInt)
		cout<<intData<<" is larger than "<<secondInt<<endl;

	
}

[codekiddy]

hello,
I've changed some errros which are commented out.
plese read them cerfull!

template <class T> class MyData
{
  T value;
public:
	//Constructors
	MyData(T t)
	{
		value = t;
	}
	MyData()
	{
		value = 0;  //MISSING SEMICOLON ADED!!
	}
	//SetData
	void setData(T t)
	{
		value = t
	}
	//GetData
	T getData()
	{
		return value;
	}
	//Overload +
	MyData operator+(MyData op2)
	{
		return value+op2.value;
	}
	//Overload -
	MyData operator-(MyData op2)
	{
		return value-op2.value;
	}
	//Overload =
	MyData operator=(MyData op2)
	{
		return value = op2.value; //MISSIING RETURN ADDED!!!
	}
	//Overload >
	bool operator>(MyData op2)
	{
		if (value>op2.value)
	return true;
		else
			return false;
	}
	//Overload ++  
	MyData operator++(int)  //MISSING int ADDED FOR POSTFIX OPERTOR!
	{
	return	value++;
	}
	//Overload cin
template<class T>	friend istream &operator>>(istream &stream, MyData<T> &obj)
	{
		cout << "Enter data: ";
		stream >> obj.value;
		return stream;
	}
	
//Overload cout
template<class T>	friend ostream &operator<<(ostream &stream, MyData<T> &obj)
	{
		stream << obj.value;
		return stream;
	}


};

	int main( int argc, char* argv[] )
	{
	int intValue = 12;
	MyData<int> intData(intValue);
	intData++;
	cout <<"integer incremented: " << intData<<endl;
	MyData<int> secondInt(3);
	cout<<"Sum of two integers: "<< intData+secondInt<<endl;
	cout<<"Difference of two integers: "<< intData-secondInt<<endl;
	MyData<int> EqualsData;  //CHANGED FROM EqualsData() which is constructor!
        //CHANGED FROM "EqualsData(); which is constructor!
	cout<<"Test default constructor: "<< EqualsData.getData() << endl;
	EqualsData = secondInt;
	cout<<"Test == function: ";  //MISSIG ';' PLACED!
	if (intData >  secondInt)
		cout<<intData<<" is larger than "<<secondInt<<endl;
		cout << endl << "finish...";
		cin.ignore();
		return 0;
	}

there is more thisgs which may be changed but are not nesecary errors!
cheers!

[bkoper16]

thanks for your help it's running smoothly now