here is what i have to do:
1. create a jsp with two text fields that take numbers only. DONE.
2. Validate the fields, if any of the field's data invalid, goto a error jsp display a message and a button or link that will lead back to the first jsp with only the valid data remaining in the field and empty the invalid field.
How do i do the last part of No.2? i use filter to validate the fields, but i just don't know how to go back to the first jsp with the valid data remaining in the field.
thanks for your time and help!