Discussions Q&R
def manipulate_data(n):
positives,negatives=[],[]
if not isinstance(n,list):
return
else:
for i in n:
if i>=0:
positives.append(i)
if i<0
negatives.append(i)
new=[len(positives,sum(negatives)]
return new.
please the unittest is still telling me that my code failed the "only lists" allowed test.what do I do.
0 Vote
7 RéponsesNeed some guidance
1 Vote
5 RéponsesI've been trying to make first example program work for about an hour now and I've re-typed it multiple times but it still gives me the same error
ExampleProgram.java:3: error: cannot find symbol
System.out.printIn("Hello World");
And the arrow is pointing at the period (.) after out. Anyone can help me?
0 Vote
7 Réponsescan someone please explain to me how moving objects are produced ? (example in games). must I use graphics.h?. how do I transform it from simply a compiled piece of code in code block to a real software?. I've been googling this for days now and I'm still confused. Please an extensive explanation would be appreciated🙏. Thanks.
p. s you can also recommend websites where I can learn more and see good sample codes.
10 Votes
5 RéponsesI'm not able to create the new path, I put in the variable path and value c: program files/java/jdk1.80_101 which is what this file is named and it still doesn't work on the command prompt, everytime I put in Javac I get Javac is not recognizable as an internal or external command, operable program or botch file. please help
0 Vote
4 Réponsesguys this code I wrote passed all the unittest specifications in an oop lab. but they told me that I failed a hidden test. that my code can still be improved upon. I've tried my best but I don't know how to improve the code again. please give me ideas. am I using WET in any block. any unnecessary repetitions or redundancy? this is the code below:
http://www.sololearn.com/app/python/playground/cG5UEvIEkuHd/
0 Vote
4 Réponses
so although using srand(time(0)) can be used to get truly random numbers, how truly random are they? For example, if one were to call this method at the same time (in this example, if one were to use this command at 51s) each time would the numbers generated be the same???
If so, are the numbers still truly random??
And if this theory is true, how can one generate truly random numbers that cannot repeat based on external variables (e.g., time)?
2 Votes
4 Réponsesx = 42;
int num = 0;
while (num <3)
Consele.writeline (x);
num++;
int x = 42; is just an int with an asigned value of 42
int num=0; is what initiate the count for the while loop
while (num < 3); means 0<3 true, 1< 3 true, 2<3 true, the loop end at 2 bc 3 <3 is false
consele.writeline (x) will display 42 while num < 3
num++ will execute and then add 1 to check if the while loop still true, but it stop at 2, bc 3 makes it false.
so the consele.write will write 42 three times. x=42, remember the (x)
0 Vote
2 RéponsesHey there,
I don't know why, but when I import tkinter on IDLE like this:
from tkinter import *
And I say:
window = Tk()
Even known I use python 3.2.5, which should be able to use Tkinter, the python shell raises a ValueError that says that Tk() is not defined. I am very sure I use python 3.2.5 and tutorials from the Python Foundation say that is what I have to do. But it still doesn't work.
Does anyone have an idea of how to solve this problem? Thank you!
0 Vote
3 RéponsesAujourd'hui en vedette
Pig Latin
0 Votes
Someone can help me
0 Votes
Square Roots
0 Votes
What's wrong with this?
2 Votes
I’m new someone can help me
0 Votes
HTML community, HELP!!
1 Votes
I am a super beginner
0 Votes
What's doctype htMl
2 Votes
How this program executes?
0 Votes