Multiple constructors not working

[PsylentKnight]

New to C++, not to programming. Everything appears to be working except the constructor with no parameters. When I try to instantiate Dog using it, I get these errors:

[Error] request for member 'printinfo' in 'dog3', which is of non-class type 'Dog()'

[Error] request for member 'bark' in 'dog3', which is of non-class type 'Dog()'

Surely its something simple, but I can't figure out what it is for the life of me...

#include <iostream>
using namespace std;

class Dog{
public:

	Dog(int x, string y);
	Dog();
	
	void printinfo();
	void bark();
	
	int age;
	string name; 
	
};

Dog::Dog(int x, string y){
	age = x;
	name = y;
	cout << "In constructor: name " << name << " and age " << age << endl;
}

Dog::Dog(){
	cout << "Enter dog's age: ";
	cin >> age;
	
	cout << endl;
	
	cout << "Enter dog's name: ";
	cin >> name;
	
	cout << endl;
	
	cout << "Dog's age is " << age << ", dog's name is " << name << endl;
}

void Dog::printinfo(){
	cout << "Printing info for " << name << ", age " << age << endl;
}

void Dog::bark(){
	if(age >= 5){
		cout << name << " is barking. Bark. Bark. Bark." << endl; 
	}
	else{
		cout << name << " is barking. Bark." << endl; 
	}
}

int main(){
	cout << endl;
	
	Dog dog1(14, "Lucy");
	Dog dog2(4, "Cocoa");
	Dog dog3();
	
	dog1.printinfo();
	dog2.printinfo();
	dog3.printinfo();
	
	dog1.bark();
	dog2.bark();
	dog3.bark();
	
	cout<<endl;
}

[Zhuge]

Line 56 prototypes a function that takes no parameters and returns a Dog. Either omit the parentheses (they do nothing), or replace them with curly braces.

[JLBorges]

// Dog dog3() ; // 'dog3' is a function.
Dog dog3 ; // 'dog3' is an object. 

See: https://en.wikipedia.org/wiki/Most_vexing_parse

[PsylentKnight]

Ah, thanks. I'm used to java, where you include the brackets when instantiating an object no matter what.