C#•2y ago

I am trying to make a list program but i did something wrong

It gives an array index error, can you tell me what i did wrong?

HD-Fr0sTOP•1/21/24, 4:05 PM

HD-Fr0sTOP•1/21/24, 4:06 PM

the array should be dynamic idk why it does not work

cap5lut•1/21/24, 4:10 PM

at the very beginning u have , thats already an invalid index

cap5lut•1/21/24, 4:10 PM

indices start with 0, so the range of valid indices is from 0 to (Length - 1)

cap5lut•1/21/24, 4:13 PM

also note that are arrays not lists, arrays are somewhat similar, but their size does not change
actual lists like are more complex types, which allow adding and removing elements

HD-Fr0sTOP•1/21/24, 4:14 PM

so i cant use arrays?

HD-Fr0sTOP•1/21/24, 4:14 PM

or can i use new?

cap5lut•1/21/24, 4:15 PM

because the very first thing u ask the user is "how many", u still can, u just have to create the array using that number to set the length:

HD-Fr0sTOP•1/21/24, 4:15 PM

cap5lut•1/21/24, 4:15 PM

between the and goes the size u want

HD-Fr0sTOP•1/21/24, 4:16 PM

btw thanks

cap5lut•1/21/24, 4:16 PM

glad i could help

HD-Fr0sTOP•1/21/24, 4:37 PM

HD-Fr0sTOP•1/21/24, 4:37 PM

@cap5lut what did i do wrong now+

HD-Fr0sTOP•1/21/24, 4:37 PM

cap5lut•1/21/24, 4:39 PM

well, is the length of the array, right?

cap5lut•1/21/24, 4:40 PM

and is the last valid index for that array

cap5lut•1/21/24, 4:40 PM

so if

is , its already 2 more than the last valid index

cap5lut•1/21/24, 4:41 PM

and u do that check after accessing the array, so it errors before u can actually do the check

cap5lut•1/21/24, 4:42 PM

because loops take already a condition u can basically modify it there

cap5lut•1/21/24, 4:43 PM

alternatively u could also write this as loop:

HD-Fr0sTOP•1/21/24, 4:45 PM

thanks again

Ccap5lut and `max - 1` is the last valid index for that array

HD-Fr0sTOP•1/21/24, 4:45 PM

idk what i was thinking

cap5lut•1/21/24, 4:48 PM

u probably thought of