Editable Alv Module pool

HI All,

I am a novice to oops Abap...Need your urgent help for following scenario.

Have to develop a module pool with Two input field and on the same screen display the editable alv.The contents of the alv fetched from the input provided  in the Input field.The data edited in Alv should further update a Ztable on clicking Save button.

Please help!!!! Very Urgent...

Thanks...