Question

Pointer tasks: ( In C++ )

1. Write a program to store the address of a character variable and a float variable.

• Print the address of both variables.

• Print the values of variable using dereference operator.

• Add 2 in float value using pointer.

• Print address of character variable using reference operator.

2. Write a program that takes 5 elements in an array and print them in reverse order using pointers.

3. Write to program that takes name, age and salary of two employees from the user. Print the information of employee with more salary using pointers and structures.

Note:-

Need proper indent and output

Answer 1

1)

#include<iostream>
using namespace std;
int main()
{
   char a='Y';
   float b=10.2;
   char *pa=&a;
   float *pb=&b;
   cout<<"Address of char variable is: "<<&pa;
   cout<<"\nAddress of float variable is: "<<&pb;
   cout<<"\n\nValue of char variable is: "<<*pa;
   cout<<"\nValue of float variable is: "<<*pb;
   *pb+=2;
   cout<<"\n\nValue of float variable after adding 2 is: "<<*pb;
   cout<<"\nAddress of char variable is: "<<&pa;
   return 0;

}

output:-

Address of char variable is: 0x6dfe84 Address of float variable is: 0x6dfe80 Value of char variable is: Y Value of float variable is: 10.2 Value of float variable after adding 2 is: 12.2 Address of char variable is: 0x6dfe84 Process exited after 0.4669 seconds with return value o Press any key to continue. shot on moto gº

2)

#include<iostream>
using namespace std;
int main()
{
   int a[5];
   int *p=a;
   cout<<"Enter the 5 elements in the array:-\n";
   for(int i=0;i<5;i++)
   {
       cin>>a[i];
   }
   cout<<"\n\nReverse of array is: ";
   for(int i=4;i>=0;i--)
   {
       cout<<*(p+i)<<" ";
   }
   return 0;
}

output:-

2.exe Enter the 5 elements in the array:- 1 2 3 4 5 Reverse of array is: 5 4 3 2 1 Process exited after 8.323 seconds with return value @ Press any key to continue mpiler Resources dlh Compile Log Debug rod results Compilation results... Close ten compiler paths tanam EEN nego Type here to search shot on moto gº Dane parsing in 2016

3)

#include<iostream>
using namespace std;
struct employee
{
   string name;
   int age;
   float salary;
};
int main()
{
   employee e[2];
   float *sal1=&e[0].salary,*sal2=&e[1].salary;
   for(int i=0;i<2;i++)
   {
       cout<<"Enter the name of "<<i+1<<" employee: ";
       cin>>e[i].name;
       cout<<"Enter the age of "<<i+1<<" employee: ";
       cin>>e[i].age;
       cout<<"Enter the salary of "<<i+1<<" employee: ";
       cin>>e[i].salary;
       cout<<"\n";
   }
   if(*(sal1)>*(sal2))
   {
       cout<<"First employee has higher salary. Details are:-\n";
       cout<<"Name of employee: "<<e[0].name;
       cout<<"\nAge of employee: "<<e[0].age;
       cout<<"\nSalary of employee: "<<e[0].salary;
   }
   else
   {
       cout<<"Second employee has higher salary. Details are:-\n";
       cout<<"Name of employee: "<<e[1].name;
       cout<<"\nAge of employee: "<<e[1].age;
       cout<<"\nSalary of employee: "<<e[1].salary;
   }
   return 0;
}

output:-

99\5.exe Enter the name of 1 employee: ABC Enter the age of 1 employee: 23 Enter the salary of 1 employee: 1500 Enter the name of 2 employee: XYZ Enter the age of 2 employee: 25 Enter the salary of 2 employee: 3000 Second employee has higher salary. Details are:- Name of employee: XYZ Age of employee: 25 Salary of employee: 3000 Process exited after 11.51 seconds with return value o Press any key to continue Pe toch shot on moto go