Java Coding Help

just tried it and got it working in like 1 minute, this is some basic stuff

what do you have so far that's giving you an error my man

n(n+1)/2

This is the only hint I get..

for (int n = 1; n < 5; n++) {
sum = sum + n;
}

>>222435
that code (provided sum = 0 before the for loop) would sum all numbers up to and including 4.

>>222473
int m2s6_p01(int n) {
for (n = 1; n<6; n++);
sum = sum + n;
}

still not understanding this... or maybe something is wrong?

>>222480
that code (provided sum = 0 before the for loop) would sum all numbers up to and including 5.


hint think about the number 6

>>222480

Why the fuck are you redefining n? n is an argument and you need that to compute the output. Do this instead

int m2s6_p01(int n) {
...int x;
...int sum;
...sum = 0;
...for (x = 0; x < n; x++);
......sum = sum + x;
}

>>222491

It should be x <= n;

>>222491
that still wouldn't produce the desired output, but it is definitely better than what he had.

>>222429
this would work much better than those loops

File: 200011.jpg (36KB, 358x292px) Image search: [Google]

36KB, 358x292px

>>222482
int sum = 0;
for (n = 1; n <5; n++) {
sum= sum + n;
}
return sum;

this is genuinely killing me rn

>>222504
you gave it configured for only 1 input, change the 5 so you specify what input you want (ie a variable)

>>222493

I'm pretty sure it produces the desired output with my fix here >>222492

Also forgot to "return sum;" but I'm sure he gets the idea.

>>222429
>>222494

return( (n*(n+1))/2 )
this will always work

>>222513
yeah, it does work with that fix, you could also set x =1, but it only makes it a tiny bit more efficient