24) Write a C++ program to create two classes Class1 and Class2. Each class contains one float data member. Write following functions:
i. To accept float numbers
ii. To display float numbers in right justified format with precision of two digits
iii. To Exchange the private values of both these classes by using Friend function.
#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
class class2;
class class1
{
float a1;
public:
void get1()
{
cout<<"\n Enter First Number : ";
cout<<"\n A1 : ";
cin>>a1;
}
friend void swap(class1,class2);
};
class class2
{
float a2;
public:
void get2()
{
cout<<"\n Enter Second Number : ";
cout<<"\n A1 : ";
cin>>a2;
}
friend void swap(class1,class2);
};
void swap(class1 c1,class2 c2)
{
cout<<"\n Before Swapping : ";
cout<<"\n A1 = "<
cout<<"\n A2 = "<
int t=c1.a1;
c1.a1=c2.a2;
c2.a2=t;
cout<<"\n----------------------------------------";
cout<<"\n After Swapping : ";
cout<<"\n A1 = "<
cout<<"\n A2 = "<
}
void main()
{
clrscr();
class1 c1;
class2 c2;
c1.get1();
c2.get2();
swap(c1,c2);
getch();
}
/* OUTPUT
Enter First Number :
A1 : 12
Enter Second Number :
A1 : 13
Before Swapping :
A1 = 12
A2 = 13
----------------------------------------
After Swapping :
A1 = 13
A2 = 12 */
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