Why is the answer 468?

Question

the question was:

"What is the output of this code?

int x = 1;
int y = 2;
for(;;) {
System.out.print((x++)+(++y));
if(x = 3);
break;
}
"
like what does the for(;;) do? because I've never seen that on the course before

Answer 1

Shouldn't it be if(x==3) instead of if(x=3); ?
In that case, the output should be 46

Iteration 1:
x++ is 1, x is 2. Both ++y and y are 3
// prints 1+3= 4
// x is not 3, so break won't work

Iteration 2:
x++ is 2, x is 3. Both ++y and y are 4
// prints 2+4=6
// x is 3, so break works.
// Loop is done and dusted 😌

https://code.sololearn.com/cUjb35huVV6S/?ref=app

Answer 2

Error.
if(x = 3) This is not a boolean, this is assigning x to equal 3. To check if it is 3 use ==.
if(x == 3)

for(;;) is the same as while(true) its infinite.
Although, When x is 3, the loop breaks.

x = 1
y = 2
x++ + ++y = 4
x = 2, y = 3
x++ + ++y = 6.
x is now 3. stop loop.
Output:
46
Not 468

Answer 3

dunnu wut u guys r tuking abuwt

Answer 4

I think it is just for loop with empty conditions
lfor( empty ; empty; empty){}

EDIT - and without if(){ break ;} this loop will be infinite

Answer 5

@Tashi @NimWing @Joe

Answer 6

@Yaroslav So why is the answer so large, if it has empty condition's shouldn't it loop forever?

Answer 7

break stops loop

Answer 8

thanks for clarifying @Shamima

the person who wrote this as a challenge question got it wrong.