#I need help with a Project for class

1 messages · Page 4 of 1

left tartan
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so we can read from the begining again

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alright

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ok and so we start out with the max

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so we are at the end

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 while ((line = in.readLine()) != null){ 
            count --; 
            arr[count] = new Appliance(line);
        }```
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this part

uncut marsh
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yes

left tartan
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lets say the size was 20

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that textfile before it

deep ravine
left tartan
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reset it to one

uncut marsh
left tartan
# 
in = new TextFileInput(filename);```
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ye

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and while loop

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goes to the end

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and the count

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is subtracted

uncut marsh
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we are filling the array from arr[19] to arr[0]

left tartan
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wait but if we are at the top

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isn't it bad if it subtracts

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i'm asking to understand

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i mean this all works

uncut marsh
left tartan
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the file

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wait i might be confused

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lets say count is at 20

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the textinput thingy took me to line 1

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and it starts reading and its going down the file

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meaning the line increases

uncut marsh
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and the counter decreases

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you're confused by that right?

left tartan
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yes

uncut marsh
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with an array of 3

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3 lines

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so we have count = 3

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for (...) {
  count--;
  arr[count] = line;
}```
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first iteration:

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count reduces to 2

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arr[2] = line1

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second iteration:

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count is 1

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arr[1] = line 2

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third iteration:

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count is 0

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arr[0] = line 3

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that is what is doing

left tartan
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up and down and up and down

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ok

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i think what i was thinking was

uncut marsh
left tartan
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i thought it would mess with the size of the array

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but that previous if

uncut marsh
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we set the array before iterating

left tartan
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sorry while

uncut marsh
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so it doesn't matter

left tartan
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takes care of that

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so now we can do whatever we want with the counter

uncut marsh
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yes

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because we already used it for the array size

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and now we can just use

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arr.length

left tartan
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we need this counter to iteraite though the line?

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the second one i eman

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wait but the while

uncut marsh
left tartan
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does that

left tartan
uncut marsh
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the line iterates every time it does .readLine()

left tartan
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cause its putting the numbers in the array

uncut marsh
left tartan
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so when the count goes backwards so another number

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its putting another line there each time

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until it reaches zero

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just a bit weird

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casue its doing it bakcwards

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but it makes sense now

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ok cool

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i understand this code

uncut marsh
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here

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 while ((line = in.readLine()) != null){ 
      count++;
 }```
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we can delete the line =

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because we aren't using the line in the first loop

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while (in.readLine() != null)

left tartan
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alright

uncut marsh
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I think that's all

left tartan
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its showing red 💀

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i'm not touching it

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😭

uncut marsh
left tartan
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not red

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but it wont run

uncut marsh
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show your code

left tartan
uncut marsh
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you're using line in the second loop

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so you still need it there

left tartan
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oh right

uncut marsh
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is it working fine now?

left tartan
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yeah

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and crazy thing is i knew it was the first one i was supose tot edit

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but i still edited the second 💀

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but ye working just fine

uncut marsh
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I think everything is clear now

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Dioxin already explained about inheritance

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and the rest you learned in class

left tartan
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yea

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everything else i understand

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bruh this wifi

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at least it bugs out when im done

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thanks u so much btw

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both of u

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not only helped me with the code

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but helped me understand

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thxs alot

uncut marsh
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you can close the thread with /help-thread close

left tartan
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alright

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cya

uncut marsh
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bye