Structure in C++ With Example

What is Structure?

Collection of variable under same name and these variable can be different type (int, float, char etc) and each have a name that is used to selected from structure. Structure is user define data type which can combine different data types.

How to create structure in c++?

To create structure you must use struct statement and also called keyword after that there is a tag which is user defined, structure Name. Then there are structure member with their data type and variable name. At the end close the struct body with braces and semicolon };.

Example of Structure

Write A Program to get 4 students data (Name, Course, Age, GPA) and print average age, average GPA  and maximum GPA.

#include<iostream.h>

void main ()

{

//Struct Defination 

struct Student

{

char name[20];

char course[10];

int age;

float gpa;

};

float sumage=0,sumgpa=0,max=0,avgGpa,avgAge;

int sno;

//Struct Variable as array

Student std[4];

cout<<"Enter Students Data"<<endl;

for(int i=0; i<4; i++)

{

cout<<"**Student No "<<i+1<<"**"<<endl;

cout<<"Enter Name:";

cin>>std[i].name;

cout<<"Enter course:";

cin>>std[i].course;

cout<<"Enter age:";

cin>>std[i].age;

//Suming Age for average

sumage=std[i].age+sumage;

cout<<"Enter GPA:";

cin>>std[i].gpa;

//Sum GPA for average

sumgpa=std[i].gpa+sumgpa;

//For Maximum GPA

if(max<std[i].gpa)

{

max=std[i].gpa;

sno=i;

}

}

//Average 

avgAge=sumage/4;

avgGpa=sumgpa/4;

cout<<"Age Average Is:"<<avgAge<<endl;

cout<<"GPA Average Is:"<<avgGpa<<endl;

cout<<std[sno].name<<" Got Maximum GPA Is:"<<max;

}

OutPut of Example