Swap 2 variables without using a temp variable

Question Posted / guest

4 Answers
8919 Views
Oracle, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Swap 2 variables without using a temp variable..

Answer / guest

a,b
a=a+b
b=a-b
a=a-b

Is This Answer Correct ?

21 Yes

0 No

Swap 2 variables without using a temp variable..

Answer / sheetal

if a=5 and b=3 are two variables, then add them i e
a=a+b; a=8
b=a-b; b=5
a=a-b; a=3

Is This Answer Correct ?

12 Yes

0 No

Swap 2 variables without using a temp variable..

Answer / mfsi_satyakamm

int x,y;
x=x+y;
y=x-y;
x=x-y;

Is This Answer Correct ?

12 Yes

1 No

Swap 2 variables without using a temp variable..

Answer / s n

try this one line swaping of two variables

a=((a+b)-(b=a));

Is This Answer Correct ?

3 Yes

5 No

Post New Answer

More Manual Testing Interview Questions

what is meant by beta testing?

4 Answers

wat is build duration

1 Answers CTS,

In front end if you enter one record it will be inserted in to 20 tables in back end.so How you are going to test in Manually whether data is going properly in to concern data tables or not? Is there any better solution to do that instead of opening the table and checking individually?

4 Answers

how do we know our perticular task is compltely tested or not

2 Answers

who will prepare tracebility matrix?

2 Answers

Describe Software Testing life cycle? What are the steps in volved in STLC (Software Testing Life Cycle)?

22 Answers MBT,

Hi can anyone give me 5 situations where your developerignore your bug

5 Answers

Hi, Please give me brief explination about agile methodology.

2 Answers

what is v-model and explan with diagramm