Constructors

Code:

#include<iostream>

class Sample
{
   int a;

public:

   Sample(int a)
   {
      this->a=a;
   }

   int getA()
   {
      return a;
   }

};

int main()
{
   Sample s;
}

The above code will produce error because once u have created parameterized constructor, default constructor wont be created automatically.

Code:


#include<iostream>

class Sample
{
   int a;

public:

   int getA()
   {
      return a;
   }

};

int main()
{
   Sample s;
}


But if no constructors are defined, default constructor will be created.

how this works in java ? I guess default constructor will be called first followed by parameterized constructor(if any).. am i right ?

no. if u r creating an object, only one constructor will be called depending on arguments.