I don’t under stand

Question

int i = 1;
System.out.println(3+(—1));

Guys is this give output??? It’s give me error
Maybe my teacher write it rong ?

In java

Answer 1

Replace --1 with --i .
Then it'll be ok ,otherwise what is the use of i.

Answer 2

--1 is wrong in your code.
Decrement operator can be used with variables only.

Answer 3

Yes

Answer 4

Okk.
All the best

Answer 5

I dnt knw.
It is U who post the code .
U can modify it according to ur desires for ur required output

Answer 6

See...
Whenever some number is incremented or decremented on that same instant..
Rather if you use the value of i for the next step....you will get the expected result...
If not clear then you may DM me

Answer 7

the answer is 3 right?

Answer 8

You can't pre-or-post decrement/increment constant values.

Answer 9

1. No, maybe you type it wrong..
There is unknown character in your syntax that java not usually use it
What is it? Your minus.. (-)
Use the short minus.. (-)
Not the long one(—) neither the med one..(–)

Done.. Your syntax, bug, and error fixed..
Always try to read your own error in console, because it sometimes tell you which line or syntax is wrong..

Answer 10

You cant write --1 on a number!! You can use this on variable -> --i
3+(-1) result is 2
3+(--i) result is 3 in your case.

https://www.sololearn.com/learn/Java/2141/

Answer 11

https://code.sololearn.com/c58C8zJuewzm/?ref=app

Answer 12

but when i write i instead 1

https://code.sololearn.com/c089BdaEB0Sh/?ref=app

Answer 13

why we give int i =1

when we dont use it on the output!

Answer 14

why there is (
int i =1

1 here What is its use if it does not help us in the output and print order?

Answer 15

my teacher give me this on exam , i answerd 3

for me the mark is not the same important of understand

Answer 16

so i come here to ask and understand

Answer 17

i= 1( - -1) = +1 3 + (- -1) = 3+1 = 4

is this solution is true???