C++ create new object in vector code example

Example 1: how to create a vector in c++

// CPP program to create an empty vector 
// and push values one by one. 
#include <vector>

using namespace std;
int main() 
{ 
    // Create an empty vector 
    vector<int> vect;  
    //add/push an integer to the end of the vector
    vect.push_back(10); 
	//to traverse and print the vector from start to finish
    for (int x : vect) 
        cout << x << " ";

    return 0; 
}

Example 2: make a vector of an objects c++

#include <vector>
using std::vector;

class MyClass { .... };

vector<MyClass> myVector( 100, MyClass() );
/* myVector now contains 100 objects of type MyClass, built with the default constructor */

vector<MyClass> myVector2;
// MyVector2 is empty

myVector2.assign( 100, MyClass() );

// My Vector2 now contains 100 objects of type MyClass, built with default ctor