Construction ex 1

 #include<iostream>

#include<conio.h>

using namespace std;

class like

{

float a,b,c;

public:

like();

like(int x,int y);

like(int x,int y,int z);

void disp();

};

like::like()

{

a=b=c=200;

}

like::like(int x,int y)

{

a=x+x;

b=y+y;

c=x+y;

}

like::like(int x,int y,int z)

{

a=z-y-x;

b=y-z;

c=z-y;

}

void like::disp()

{

cout<<"\nvalue of A is :"<<a;

cout<<"\nvalue of B is :"<<b;

cout<<"\nvalue of C is :"<<c;

}

int main()

{

like A;

like B(100,200);

like C(200,300,500);

cout<<"\nObject A";

A.disp();

cout<<"\nObject B";

B.disp();

cout<<"\nObject C";

C.disp();

getch();

return 0;

}