Fruit           Weight  Price

-----------------------------

Banana          45      3.25

Apple           55      10.5

Code Understanding

void setApple(void); //this function declaration is used to set values in apple object of struct
struct Fruit //This a struct which define some variables related to Fruit.
{
int weight;   //An integer variable that will contain the fruit weight
float price;  //A float variable that will contain the price of the fruit.
}apple,banana;  //These two are global instances/objects declared along with the structure itself.

int main() {
banana.weight=45; banana.price=3.25;
These variables of object banana are set in the main routine.

cout<<“FruitttWeighttPrice”<<endl; cout<<“—————————–“<<endl;
This will print as heading line of information we shall print further.

cout<<“Bananatt” <<banana.weight<<“t”<<banana.price<<endl;
This line prints the details picked from the banana object.

setApple();
This function set the values in the apple object. The apple object is outside main() and setApple() functions still they can be accessed anywhere.

cout<<“Applett” <<apple.weight<<“t”<<apple.price<<endl;
Value of apple object are printed here.

void setApple() {apple.weight=55; apple.price=10.50;}
This function sets the variables in the apple object which is a global object. If object would have been declared inside the main routine these variables will not accessible.

Notes

• Other than declaring global objects along with structure syntax near the ending braces, the global objects can also be declared in the global area above the main routine as follows –
  Fruit apple, banana;
  int main()
  { ………… }

Common Errors

• Some student declare global objects after the semicolon of the structure as follows –
  struct Name{…};a,b
  This is incorrect. This should be  –
  struct Name { … }a,b;

Suggested Filename(s): stru-global-obj.cpp, strucglo.cpp