Thread: Invalid input

I'm having problems validating my input values.
To ensure only numeric input i did:

Code:

                while(cin.good())	
	{
	cout<<"Please enter a number: ";
	cin>>i;
	cout<<cout<<i;
	}

However if i loop it and clear the buffer:

Code:

cout<<"Please enter your choice: ";
    cin.seekg(0);
    cin.clear();
    cin>>i;
while(i<1 || i>9 || !cin.good())
    {
        cout<<"\aInput Error. Please  make a valid choice: ";
        cin.seekg(0);
        cin.clear();
        cin>>i;
     }

In the first case if i enter any int it is expected and displayed as an int.
However in the second case
if i enter 08 instead of 8 or 09 instead of 9,
it only accepts the 0, in some cases it acceepts 010 as an octal value, and displays it at a later stage as 8.
Is there any other way i can clear the buffer.

Any help in resolving this problem will be appriciated.