class student
{
//member variable
double marks1;
double marks2;
double marks3;
double average;
//member methods
void average( )
{
avg=(marks1+marks2+marks3)/3;
}
}
class demo
{
public static void main(String args[])
{
student obj1= new student( ); //object1 is created
student obj2= new student( ); //object2 is created
student obj3= new student( ); //object3 is created
//Assign value for student 1
obj1. marks1 =36.5;
obj1. marks2 =43.5;
obj1. marks3 =56.7;
//Assign value for student 2
obj2. marks1 =38.5;
obj2. marks2 =72.5;
obj2. marks3 =67.5;
//Assign value for student 3
obj3. marks1 =76.8;
obj3. marks2 =80.5;
obj3. marks3 =46.5;

System.out.println(“student 1:”);
obj1.average( );
System.out.println(“Student 2:”);
obj2.average( );
System.out.println(“student 3:”);
obj3.average( );
}
}