Program:To illustrate constructor overloading in c++

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Operator overloading
CODE:

#include<conio.h>
#include<iostream.h>
class abc
{
int a,b;
public:
abc()
{a=0;b=0;}
abc(int x)
{a=x;b=0;}
abc(int x,int y)
{a=x;b=y;}
void show()
{
 cout<<a<<"  "<<b<<endl;
}
};
void main()
{
clrscr();
abc obj1;
abc obj2(10);
abc obj3(10,20);
obj1.show();
obj2.show();
obj3.show();
getch();
}

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C++ Program