getting error when compiling the code below

example.cpp

// my compilation command: g++ -o burrito main.cpp
// ERROR:
// /usr/bin/ld: /tmp/ccruqflI.o:A in function `main': 
// main.cpp:(.text+0x1f): undefined reference to `Burrito::Burrito()' 
// collect2: error: ld returned 1 exit status

// Burrito.h
#ifndef BURRITO_H
#define BURRITO_H

class Burrito
{
    public:
    Burrito();
};
#endif

// Burrito.cpp
#include "Burrito.h"
#include <iostream>
using namespace std;

Burrito::Burrito()
{
    cout << "I am a banana" << endl;
}

// main.cpp
#include "Burrito.h"
#include <iostream>
using namespace std;

int main(void)
{
    Burrito b0;
    return 0;
}

You should create a project and make a console application and then do all the things of making the class in the same directory etc.
If you dont understand what I'm saying, then e-mail me on (tashfeen.haider345@gmail.com).