Overloading prefix and postfix increment in class timer. Problems while debugging - c++

Question

I need to overload increment for class Timer. Members of my class are minutes and seconds.
#include <iostream>
#include <conio.h>
using namespace std;
class Timer
{
private:
int minutes;
int seconds;
public:
Time(){
minutes = 0;
seconds = 0;
}
Time(int m, int s){
minutes = m;
seconds = s;
}
void displayTime()
{
cout << "M: " << hours << " S:" << minutes <<endl;
}
Time operator++ ()
{
++seconds;
if(seconds >= 60)
{
++minutes;
seconds -= 60;
}
return Time(minutes, seconds);
}
Time operator++( int )
{
Time T(minutes, seconds);
++seconds;
if(seconds >= 60)
{
++minutes;
seconds -= 60;
}
return T;
}
};
int main()
{
Time T1(18, 23), T2(19,12);
++T1;
T1.displayTime();
++T1;
T1.displayTime();
T2++;
T2.displayTime();
T2++;
T2.displayTime();
_getch()
}
When I debug, it says
Compiler: Default compiler
Building Makefile: "C:\Dev-Cpp\Makefile.win"
Executing make...
make.exe -f "C:\Dev-Cpp\Makefile.win" all
g++.exe -c main.cpp -o main.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include"
main.cpp:13: error: ISO C++ forbids declaration of `Time' with no type
main.cpp:18: error: ISO C++ forbids declaration of `Time' with no type
main.cpp:29: error: ISO C++ forbids declaration of `Time' with no type
main.cpp:29: error: expected `;' before "operator"
main.cpp:40: error: expected `;' before "Time"
main.cpp:40: error: ISO C++ forbids declaration of `Time' with no type
main.cpp:40: error: expected `;' before "operator"
main.cpp:54: error: expected `;' before '}' token
main.cpp: In member function `void Timer::displayTime()':
main.cpp:26: error: `hours' undeclared (first use this function)
main.cpp:26: error: (Each undeclared identifier is reported only once for each function it appears in.)
main.cpp: At global scope:
main.cpp:56: error: new types may not be defined in a return type
main.cpp:56: error: extraneous `int' ignored
main.cpp:56: error: `main' must return `int'
main.cpp: In function `int main(...)':
main.cpp:57: error: `Time' undeclared (first use this function)
main.cpp:57: error: expected `;' before "T1"
main.cpp:59: error: `T1' undeclared (first use this function)
main.cpp:64: error: `T2' undeclared (first use this function)
main.cpp:69: error: expected `;' before '}' token
make.exe: *** [main.o] Error 1
Execution terminated

Answer 1

Object should be of type Timer not Time.
try to match class name and constructor name.
Hour member is not defined in displayTime method.
void displayTime()
{
cout << "M: " << minutes << " S:" << seconds <<endl;
}
Please refer following code
http://ideone.com/m50w2r