output formatting - Can I print to a different notebook? (within the context of the same kernel)

Please imagine a simple loop:

For[i=1,i<=100,i++,
  Print[i];
];

We can ask Print[] to output $(1,2,3,4,...)$ to a different notebook (in the context of the same kernel)?

Answer

As Yves already mentioned, you can easily create and edit notebooks through Mathematica commands. A start would be this tutorial, which you can find in the Documentation Center under tutorial/ManipulatingNotebooksFromTheKernel

Here is a short example printing the i values into a new notebook:

nb = CreateDocument[];

For[i = 1, i <= 10, i++,
 SelectionMove[nb, Next, Cell];
 NotebookWrite[nb, 
  Cell[BoxData@RowBox[{"i is now ", ToString[i]}], "Output"]];

]

If you want to know how to construct cell expressions, you could just go over any cell in a notebook and hit Ctrl+Shift+E to see the underlying structure.