there are 2 variables called x and y ,x contains 1,2 and y
contains 3,4 we have to swap the values from x to y and y
to x with out using dummy variables and it can be done only
by using a single statement ? how?
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Answer Posted / ravin
Buddies, why are you all selecting from and updating the
tables. The question says, just two variables to be swapped
without using any extra variable and also with a single
statement.
And Ramakanth's answer is right i.e. y=x+y-(x=y) . Thats it.
^^x contains 1,2 - didn't understand though.
| Is This Answer Correct ? | 13 Yes | 2 No |
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