Prameterized constructor

#1

#include
using namespace std;
class room{
public:
int l,b,h;
room()
{
cout<<“Wow!\n”;
}
room(int l,int b,int h)
{
cout<<l<<" “<<h<<” "<<b<<endl;
}
void input();
void print(){
cout<<“length”<<l;
cout<<“breadth”<<b;
cout<<“height”<<h;
}
};
void room::input()
{
cin>>l>>b>>h;
}
int main()
{
room r1;

room r2(6,7,9);
r2.print();

}
here the output shows

Wow!
6 9 7
length-2breadth7208680height1997893613

Why the last output is this?

Sir, please give me answer as soon as possible

#2

@Diptendu1Nandi in the constructor, you are only taking parameters but you haven’t assigned those values to any variables. If you do
this->l = l;
this->b = b;
this->h = h;
inside the constructor, then the print function will not give garbage values.
Please save your code on ide.codingblocks.com and share the link next time.

#3
#4

Please see at my code

#5

@Diptendu1Nandi here
room(int lr,int br,int hr=90)
{
cout<<“Parameter”;
lr=l;
br=b;
hr=h;
}

this is a constructor, so you have to assign values TO l, b and r, but you’re doing quite the opposite

#6

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