what will be the output(step by step) for the following-
if t=10.
1) t-=++t+(--t)*2
2)t+=t-- + ++t+ --t
ans for each case
kvnmurty:
can you please rate the answer and i hope the step by step answer is clear.
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for 1) t = - 18 after the statement is executed
--t is done first. so t becomes 9. u get 18 to right of +. ++t gives 10. and on left of + we have 10. RHS of -= we have 28. t is now 10.
for 2) t = 38 after the statement is executed
--t is done first. so t=9. RHS =9. ++t is 10 and t become 10. RHS is now 19. t-- gives 10 value and t becomes now 9. RHS of += 29.
--t is done first. so t becomes 9. u get 18 to right of +. ++t gives 10. and on left of + we have 10. RHS of -= we have 28. t is now 10.
for 2) t = 38 after the statement is executed
--t is done first. so t=9. RHS =9. ++t is 10 and t become 10. RHS is now 19. t-- gives 10 value and t becomes now 9. RHS of += 29.
Write t -= (++t ) + (--t) * 2 . In this first --t will be done. t =9. E1=9. Then multiplication of E1 by 2. So E1 = 18. Then ++t will be done. So t = 10. E2 = 10. Then results E1 and E2 are added. So we get t -= 28. As t is 10 at this point, this will result in -18.
write t += (t--) + (++t) + (--t) In this first --t is done. So t is 9. yu get E1 = 9. next ++t is done. so t becomes 10. E2 = 10. Now t-- is done. so t = 9. But E3 = 10 and not 9 as post-fix operator is used. Now add E1, E2, E3 to get 29. It becomes now t += 29 As t =9 at this point of time, t will become 38.
t+=t dosnt mean t= ++t !!
t += x means that t = old value of t + value of expression x
If we dont understand the values, try a program online and see result
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10,29 are answer friends
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