Class contains static variable, then every object of the class has its copy of static variable - C++

Discussion

• Nihal   -Posted on 08 Oct 15
  If you declare static variable in a class then a single copy will be created for each object. Static variable have a scope till the program lifetime. You can declare class, method, variable as static.
  Example:
  class Demo
  {
  public:
  
  void counter()
  {
  static int count=0;
  cout << count++;
  }
  };
  void main()
  {
  Demo obj1;
  for(int i=0;i<5;i++)
  {
  obj1.counter();
  }
  }
  
  Output : 0 1 2 3 4
  If you run the same program's output without using static variable the output will be.
  0 0 0 0 0
  

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