this is vijay can any one tell the answer

Positive Testing: Testing the build with permitted 
values,i.e values as per the requirement specification.

Negative Testing: Testing the build with wrong inputs,i.e 
non permitted values as per the requirement specification.

Correct me if i am wrong.

Positive Testing: Confirm that a feature behaves according 
to the specifications.

Negative Testing: Confirm that the software fails 
gracefully if used incorrectly or if it receives incorrect 
input.

+ve testing verify that Software is behaving according to 
there specification.

-ve testing verify that Software does not do something 
which specification does not mentioned to do.

Ex: If anybody want to write test case on Glass

+ve test case will be glass can store limited quantity of 
water whereas -ve test case will be does glass hold water 
if we pore it from bottom.

positive testing:
        Testing aim at showing software works or test to pass

Negative testing:
        Testing aim at showing software does not work or
test to fail