Structures and pointers oop(object oriented programming)

 Structures and pointers

Task 1:  

              Write a program to create structure named employee. Take information of employee from user as input (EmpID, EmpName, EmpAge, EmpSalary) Display the output.

#include<iostream>
#include<string>
using namespace std;
struct employ{
	int id;
	string name;
	int age;
	int salary;
};
int main()
{
	employ inform;
	cout << "Enter the id of the employ:";
	cin >> inform.id;
	cin.ignore();
	cout << "Enter the name of the employ";
	getline(cin, inform.name);
	cout << "Enter the age of the employ:";
	cin >> inform.age;
	cout << "Enter the salary of the employ:";
	cin >> inform.salary;
	cout << "The id of the employ is:" << inform.id << endl;
	cout << "The name of the employ is:" << inform.name << endl;
	cout << "The age of the employ is:" << inform.age << endl;
	cout << "The salary of the employ is:" << inform.salary << endl;
	getchar();
	getchar();
	return 0;
}       

          

       
 

Task 2:

                  Perform Task 1 using pointer structure.

          
#include<iostream>
#include<string>
using namespace std;
struct employ{
	int id;
	string name;
	int age;
	int salary;
};
void out(struct employ);
void out_ref(struct employ*);
int main()
{
	employ inform;
	cout << "Enter the id of the employ:";
	cin >> inform.id;
	cin.ignore();
	cout << "Enter the name of the employ:";
	getline(cin, inform.name);
	cout << "Enter the age of the employ:";
	cin >> inform.age;
	cout << "Enter the salary of the employ:";
	cin >> inform.salary;
	out(inform);
	out_ref(&inform);
	getchar();
	getchar();
	return 0;
}
void out(struct employ inform)
{
	cout << "The id of the employ is:" << inform.id << endl;
	cout << "The name of the employ is:" << inform.name << endl;
	cout << "The age of the employ is:" << inform.age << endl;
	cout << "The salary of the employ is:" << inform.salary << endl;
}
void out_ref(struct employ *inform)
{
	cout << "The id of the employ is:" << inform->id << endl;
	cout << "The name of the employ is:" << inform->name << endl;
	cout << "The age of the employ is:" << (*inform).age << endl;
	cout << "The salary of the employ is:" << inform->salary << endl;
}

       
 

Task 3:

               Perform Task 1 and display the output using function. Pass the structure object in function first by value and then by reference.

          
#include<iostream>
#include<string>
using namespace std;
struct employ{
	int id;
	string name;
	int age;
	int salary;
};
void out(struct employ);
void out_ref(struct employ&);
int main()
{
	employ inform;
	cout << "Enter the id of the employ:";
	cin >> inform.id;
	cin.ignore();
	cout << "Enter the name of the employ:";
	getline(cin, inform.name);
	cout << "Enter the age of the employ:";
	cin >> inform.age;
	cout << "Enter the salary of the employ:";
	cin >> inform.salary;
	out(inform);
	out_ref(inform);
	getchar();
	getchar();
	return 0;
}
void out(struct employ inform)
{
	cout << "The id of the employ is:" << inform.id << endl;
	cout << "The name of the employ is:" << inform.name << endl;
	cout << "The age of the employ is:" << inform.age << endl;
	cout << "The salary of the employ is:" << inform.salary << endl;
}
void out_ref(struct employ &inform)
{
	cout << "The id of the employ is:" << inform.id << endl;
	cout << "The name of the employ is:" << inform.name << endl;
	cout << "The age of the employ is:" << inform.age << endl;
	cout << "The salary of the employ is:" << inform.salary << endl;
}

       
 

Task 4:

               Enter the marks of 5 students in Computer Programming, ICT and Object-Oriented Programming (each out of 100) using a structure named Marks having elements roll no., name, cp_marks, ict_marks and oop_marks and then display the percentage of each student.

       

#include<iostream>
#include<string>
using namespace std;
struct marks{
	int roll;
	string name;
	int cp_marks;
	int ict_marks;
	int oop_marks;
};
int main()
{
	marks no[5];
	int per[5];
	for (int i = 0; i < 2; i++)
	{
		cout << "Enter the roll number of the student:";
		cin >> no[i].roll;
		cin.ignore();
		cout << "Enter the name of the student:";
		getline(cin, no[i].name);
		cout << "Enter the marks of cp:";
		cin >> no[i].cp_marks;
		cout << "Enter the marks of ict:";
		cin >> no[i].ict_marks;
		cout << "Enter the marks of opp:";
		cin >> no[i].oop_marks;
		per[i] = (no[i].cp_marks + no[i].ict_marks + no[i].oop_marks) / 3;
		cout << "Percentege of student " << i + 1 << ":" << per[i] << endl;
	}
	getchar();
	getchar();
	return 0;
}          

       
 

Task 5:

                  Write a structure to store the name, account number and balance of 50 customers and store their information.
1 - Write a function to print the names of all the customers having balance less than $200.
2 - Write a function to add $100 in the balance of all the customers having more than $1000
in their balance and then print the incremented value of their balance.

       

#include<iostream>
#include<string>
using namespace std;
struct info{
	string name;
	int acc;
	int balence;
};
void low(struct info data[50],int);
void add(struct info[50],int);
int main()
{
	info data[50];
	int size;
	cout << "How many customer has the data:";
	cin >> size;
	for (int i = 0; i < size; i++)
	{
		cin.ignore();
		cout << "Enter the name of the customer:";
		getline(cin, data[i].name);
		cout << "Enter the account number of the customer:";
		cin >> data[i].acc;
		cout << "Enter the balence of the customer:";
		cin >> data[i].balence;
		
	}
	low(data, size);
	add(data,size);
	getchar();
	getchar();
	return 0;
}
void low(struct info data[],int size)
{
	for (int i = 0; i < size; i++)
	{
		if (data[i].balence < 200)
		{
			cout << "Customer " << i + 1 << " name which has the balence less than 200 is:" << data[i].name << endl;
			cout << "Customer " << i + 1 << " balence is:" << data[i].balence << endl;
		}
	}
}
void add(struct info data[], int size)
{		
	for (int i = 0; i < size; i++)
	{
		if (data[i].balence>1000)
		{
			cout << "Balnce with increment is " << data[i].balence + 100 << " for customer " << i + 1 <<endl;
		}
	}
}