C++ vs Java constructors

Question

According to John C. Mitchell - Concepts in programming languages,

[...] Java guarantees that a constructor is called whenever an object is created.

Answer 1

For C++ types that declare constructors, it is not possible to create instances of those types without the use of a constructor. For example:

class A {
   public:
      A( int x ) : n( x ) {}
  private:
      int n;
};

it is not posible to create instancev of A without using the A(int) constructor, except by copying, which in this instance will use the synthesised copy constructor. In either case, a constructor must be used.