U3P5

Program for finding maximum number using Friend function for two classes.

 #include<iostream.h>  
 #include<conio.h>  
 #include<limits.h>  
 class C2;  
 class C1  
 {  
      int v1,v2,v3;  
      public:  
      void getdata1()  
      {  
           cout<<"Enter 3 values of Class C1 : ";  
           cout<<"\nEnter value 1 : ";  
           cin>>v1;  
           cout<<"Enter value 2 : ";  
           cin>>v2;  
           cout<<"Enter value 3 : ";  
           cin>>v3;  
      }  
      friend void find_max(C1,C2);  
 };  
 class C2  
 {  
      int v4,v5,v6;  
      public:  
      void getdata2()  
      {  
           cout<<"\nEnter 3 values of Class C2 : "<<endl;  
           cout<<"Enter value 4 : ";  
           cin>>v4;  
           cout<<"Enter value 5 : ";  
           cin>>v5;  
           cout<<"Enter value 6 : ";  
           cin>>v6;  
      }  
      friend void find_max(C1,C2);  
 };  
 void find_max(C1 obj1, C2 obj2)  
 {  
      int max1;  
      int max2;  
      if(obj1.v1>obj1.v2 && obj1.v1>obj1.v3)  
      {  
           max1 = obj1.v1;  
      }  
      else if(obj1.v2>obj1.v1 && obj1.v2>obj1.v3)  
      {  
           max1 = obj1.v2;  
      }  
      else  
      {  
           max1 = obj1.v3;  
      }  
      if(obj2.v4>obj2.v5 && obj2.v4>obj2.v6)  
      {  
           max2 = obj2.v4;  
      }  
      else if(obj2.v5>obj2.v4 && obj2.v5>obj2.v6)  
      {  
           max2 = obj2.v5;  
      }  
      else  
      {  
           max2 = obj2.v6;  
      }  
      cout<<endl<<"Maximum number of values given in Class C1 : "<<max1<<endl;  
      cout<<"Maximum number of values given in Class C2 : "<<max2<<endl;  
 }  
 void main()  
 {  
      clrscr();  
      C1 c1_obj;  
      c1_obj.getdata1();  
      C2 c2_obj;  
      c2_obj.getdata2();  
      cout<<"\nFinding Maximum number using Friend Function...";  
      find_max(c1_obj,c2_obj);  
      getch();  
 }  

OUTPUT :