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Why we use same name of instance variable as the argument name( of initialize method) followed by @
classes
ruby
0 Voto
2 Respostas
2nd Dec 2016, 12:57 PM
abhishek sharma
What does self do? what is it meant to be? and is it mandatory? What does the __init__ method do? why is it necessary? etc
python
2 Votos
2 Respostas
9th Jan 2017, 5:16 PM
chaurasiya abhimanyu harilal
Is it compulsory to use only P while creating tags <p> if yes . Why can't any other letter if no whats the difference ...
tags
0 Voto
2 Respostas
6th Sep 2019, 7:17 AM
Manem Yaswant
Why this shows no output just by replacing x =name instead of name = x in this code ?
c++
coding
sololearn
0 Voto
1 Resposta
23rd Jul 2019, 5:31 AM
Rahul Singhania
In import numpy as np why do we use only np? Can't we put anything else apart from np?
data
0 Voto
1 Resposta
28th May 2020, 4:03 PM
Shravya Nadig
Why do lessons sometimes say I got the right answer and then have me do it again? (Android 8.1.2)
sololearn
0 Voto
2 Respostas
20th Jan 2018, 2:20 PM
Carter E
Why do we have to use a single and multi- line comment when we can just use multi line?
c++
comments
0 Voto
2 Respostas
13th Aug 2016, 10:24 AM
Atule Samuel
Why when i am going to run my code the link that i have just written not working ??
html
links
-1 Voto
3 Respostas
3rd Jul 2017, 4:26 PM
Martin Boles
In Code Playground,I saw people coding in Web. Why are there separate codes for HTML,CSS,JS. Can't we write it in a single code?
css
html
javascript
0 Voto
3 Respostas
6th Jan 2018, 7:52 PM
Bhanu Prakash
Can you explain me, why does it always output true? I would like to know if appointed substring is present in original string.
c++
0 Voto
1 Resposta
13th Sep 2021, 5:07 AM
TeaserCode
Why does the width attribute brings the horizontal line in the middle and not from the left? Should we add an alignment attribut
attributes
html
0 Voto
3 Respostas
18th Aug 2017, 3:35 PM
Job.A
Below code returns an error b does not name a type. why ?? Is variable assignment not allowed in classes like general assignment
c++
classes
constants
1 Voto
2 Respostas
7th Oct 2016, 12:31 AM
sai chaitanya nandipati
Why do we use far in float celcius=37,far; in 4 th line? What is the purpose of far in that 4th line. Please explain this far
c
0 Voto
2 Respostas
5th Jan 2022, 12:11 PM
Nilambar Karmakar
Why do we use categorical cross entropy for classification of handwritten images into the numbers, instead of binary cross entro
deeplearning
keras
neuralnetworks
0 Voto
1 Resposta
9th Feb 2020, 2:05 PM
Punyasloka Sahoo
Guys ! Why do we need UX design in Web Development and how to create a requirement search tree ?
responsive
ux
web
0 Voto
1 Resposta
12th Jul 2022, 12:00 PM
Ermias Kebede
why use % two times in if statement after top 10 when result show one time %, what is the mean of second percentage?
c
0 Voto
1 Resposta
13th Mar 2020, 7:32 PM
Jitendra Kumar
I Given %2.4f to variable a and %6.2f to variable b but output coming more digts than %w before decimal , why it's happening
float
formatting
input
0 Voto
2 Respostas
30th Aug 2019, 2:46 PM
Mr. Nothing
I am unsure why my program behaves how it does when I input words where it should receive numbers. I'm using try and except.
except
main
python3
try
0 Voto
2 Respostas
8th May 2019, 5:11 AM
Elijah
Why are tests 3,4,5 hidden? This code works on 1 and 2 but not on 3,4,5 and I'm unable to submit it because of that. Any ideas?
basics
code
python
0 Voto
2 Respostas
6th Nov 2022, 1:18 PM
Stefan Ambrose
blog schedule
colomn
does
lines
my
not
on
schedule
show
the
why
0 Voto
1 Resposta
9th Jan 2020, 1:56 PM
Yahaira Hernandez
In C++, why we can not create object of abstract class and we can just create only pointer/referance of abstract class?
a
0 Voto
1 Resposta
11th Jul 2019, 12:44 AM
Amit chavare
Why there is 1/19 in section Paragraph? How can I finish 19/19? I was clicking button Continue and it just skip to the next :(
html
0 Voto
2 Respostas
22nd May 2018, 4:20 PM
Mateusz
Is python good for selenium ? I heard like java is better than python for execution. Can someone tell which is better and why ?
java
python3
0 Voto
2 Respostas
17th Mar 2019, 1:07 PM
N Rajesh
what is the use of dictionary in python..... because there are lists also available in python so why don't we use them instead of dictionary.
dictionaries
python
2 Votos
2 Respostas
31st Jul 2016, 10:39 AM
Aakash Sharma
X value is constant 5 , and z denote the address of x value . But we don't know address of x value.it show error output why ?
cpp
solo
0 Voto
2 Respostas
16th Sep 2020, 12:13 PM
Suparna Podder
Why does my result for Conditionals and Loops Break and Continue question 2 say it's wrong but, all the answers are correct?,
2
and
break
c#
conditionals
continue
loops
question
0 Voto
1 Resposta
17th Sep 2018, 6:42 PM
JOYCE YUN
What is the difference b/w interface and abstract class? We can do all the things in abstract class itself but why interface?
abstract-classes
interface
java
0 Voto
1 Resposta
16th Mar 2019, 12:57 PM
Soma Venkata Sai Krishna
Why is there structure in the same structure ? What does that mean ? And can you give me an Example? Thanks..
c
c++
code
1 Voto
2 Respostas
24th Jan 2018, 4:58 PM
Youssif Almassri
Why my code gives error when i replace these hex number by q ? If address of a pointer is in hex then it should work.
c++
pointers
1 Voto
1 Resposta
24th May 2020, 8:43 PM
Shubham Maurya
Why I use \n in python to make 2 lines when I can use print many times to make 2 lines too ??
c
css
php
python
python3
0 Voto
3 Respostas
1st Dec 2017, 10:18 AM
Omar
print(int(input("Enter a number: ")) + float (input("Enter another number: "))) why this code gives float type output?
python
type-conversion
0 Voto
1 Resposta
10th Jun 2018, 1:59 PM
Sathya R
Why cant we use strings in user defined function ...how to use string in user defined function?????
c++
strings
-1 Voto
1 Resposta
4th Jan 2019, 11:28 AM
Aamir Mehmood
Content "" does it mean in CSS3? Why it is used to make a triangle border? Thanks
border
css
css3
triangle
0 Voto
1 Resposta
28th Nov 2016, 8:05 AM
Infoore
Why Sololearn does not teach C++ 11/14 apart in a way to see to compare them ?
apps
c++
1 Voto
1 Resposta
8th Sep 2017, 5:28 PM
Garry
Is there an option to explain the reason why you're reporting a particular question after a challenge.
c++
challenge
java
php
reasons
reports
-3 Votos
1 Resposta
2nd Jul 2017, 12:31 PM
Richard Opoku
Why doesn't sololearn contain responsive web desin course? Hit like if u want they to add it
css
css3
html
html5
jquery
json
mysql
node.js
php
sql
-1 Voto
2 Respostas
3rd Jul 2017, 7:53 AM
Djaber Meghar
Is there anything wrong in this question.? Why this stupid solo learner app keep on rejecting it..!
java
0 Voto
1 Resposta
19th Apr 2017, 5:46 PM
ram kumar
Why when I use this ( >>> ), without the brackets of course .. an error happens?
python
1 Voto
1 Resposta
18th Feb 2017, 9:27 PM
Hazem Ahmed
Why is There is no output for the code?..it showed error in the "try it yourself" output
c#
pyramid
0 Voto
1 Resposta
13th Sep 2017, 8:19 AM
Android Boi
Why do we have a heading tag if it's the same thing as using h1, h2 etc
html
html5
1 Voto
1 Resposta
2nd Jul 2016, 5:05 AM
Mario Fuentes
Why am i been redirected to the first java script lesson after finishing the Es6 Object lesson
issue
pages
0 Voto
1 Resposta
26th Jul 2023, 9:08 AM
mark karuri muthoni
What it indicates: v(input,input+7) in the code below? And why to use that in sort function too?
c++
cpp
std::sort()
0 Voto
1 Resposta
22nd Aug 2018, 2:08 PM
Tincture
WHY the results of these two algorithms are different? please explain in detail, i want to understand
algorithm
else
If
0 Voto
1 Resposta
18th Oct 2017, 9:28 AM
Irman Utamara
Why we are give a parrent class refference at the time of object creation of child class?
abstract-classes
core
inheritance
java
0 Voto
1 Resposta
5th Sep 2017, 6:27 PM
Shivam Jamaiwar
What is the point of the Collection class and why is it used to only sort arrays?
java
lists
1 Voto
1 Resposta
27th Dec 2016, 6:17 PM
A.G.
Why do i get a different outputs when i run the same code in shell and pycharm??
dictionaries
1 Voto
1 Resposta
17th Jul 2017, 6:16 AM
Faizan Ahmed
Why are values in the array printed even though I passed an iterator bigger than the array?
arrays
c++
0 Voto
1 Resposta
2nd May 2018, 12:47 PM
Jonathan Perez
Why wasn't "This is executed last" as the text included in __finally__ func in the example ?
exceptions
finally
python
0 Voto
1 Resposta
15th May 2017, 5:29 AM
Alexander
Can somebody explain why i get hit with a math wall when i make it to JavaScript?
development
javascript
math
stuck
1 Voto
1 Resposta
13th Aug 2017, 11:39 PM
Hikeem Sosa
Why is it that the names.append(person) and return “—-“ are not executed after the for loop? Ok
for
loop
nested
0 Voto
1 Resposta
11th Sep 2018, 12:28 AM
Felix
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