Q&A Discussões
I don't get how num helps us find the find sum of user inputted numbers. please explain this code. Although I did notice that without it the output is always 0 no matter which number is inputted.
2 Votos
2 Respostas
I want to display the most less number in my code. I don't know what can i do if the first number is less than the second? Thank
0 Voto
1 Resposta
If I put a background-clip: content-box property to a div, how can I change the background-color of the content outside of the content box? It is displayed in the middle but I don't know how to change the color of the edge.
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5 Respostas
Say I had made an App,An Android app. Now I don't have its source codes, So is there any way to get back to the actual codes from .APK
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2 Respostas
If you write a block of code and you don't add 'return 0;', is it an error? If no, why isn't it? If no, why should it be added?
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2 Respostas
My cousin told me not to use too much integers because larger no of integers take more space! i don't know what this space refers to, can anyone tell me?
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2 Respostas
Can someone explain this code to me....
class ReverseNumberDemo
{ public static void main(String args[]) {
int num=123456789;
int reversenum =0;
while( num != 0 ) {
reversenum = reversenum * 10;
reversenum = reversenum + num%10;
num = num/10; }
System.out.println("Reverse of specified number is: "+reversenum);
}
}
the thing I don't get is the reversenum part......isn't reversenum=0 so wouldn't reversenum*10=0
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8 Respostas
I learned a bunch of languages but now I don't know what to do with them. What do I need to do to learn the rest of the process?
1 Voto
1 Resposta
can anyone teach what's the logic of nested for loops I seen video and I do programming I am just beginner but I don't understand the logic of nested for loops
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2 Respostas
I don't get when one would use magic methods. if I use them when i need to do complex operations, why would I not use a function that I define?
thanks
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2 Respostas
jeez I don't understand this issue of indentation. I noticed that the instructions or methods that run within or outside a conditional are looped in a certain way. the way print() is indented affects what will be printed. pls who has any insight on this frustrating stuff
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5 Respostas
I don't understand this 'return' stuff. where exactly does it return to?. For instance, if I type 'return 0' or 'return 1' or 'return sum', what is the difference?. Where does 0,1,sum return to (or what does it return?) and what is the reason for the return?
1 Voto
4 Respostas
just asking. in C++, why do we need to define signed & unsigned integer? why don't we always use signed? it's better. we can freely assign plus and minus. so what's the catch of using unsigned?
1 Voto
2 Respostas
Whenever I type my code in eclipse Ide my threads don't run in concurrently but run sequentially always ... Y is that ...is there a problem in my code or ide
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1 Resposta
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << total << endl;
return 0;
}
i neeed a very simple discussion please about the loop i don't understand anything
1 Voto
3 Respostas
I don't understand how to comes following output???could anyone explain?
#include <iostream>
using namespace std;
int x(int &a,int &b)
{
a=3;
b=4;
return a+b;
}
int main()
{
int a=2;
int b=7;
int c=x(a,a);
cout <<a<<endl<<b<<endl<<c;
}
output:-
4
7
8
1 Voto
2 Respostas
Isn't this just a reoccurring function called from within itself until a particular set of conditions are met? I don't know it just seems like shorthand to me. Like a do-while loop. I am sure it could be used for more than just factorials.
1 Voto
2 Respostas
guys 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/
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4 RespostasI will like to ask this question, but I don't know if is beyond the scope of this learning. it's about Gethashcode (), Tostring () Gettype () etc. I will like a little enligthment. The definition and overriding in a class, though I have gotten some definition, but I will like if someone could throw more light on it's usage.
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2 RespostasIn the short code below, I declared an array of five elements. But I'm getting confused on how to use it in a while loop. My main question is , if the user inputs a userchoice1 value that is less than 1, I want the code to keep looping until the user inputs a number that is not less than 1. But I don't know if the 7th line (userchoice1 [x]++) shows the right way to loop it.
1 Voto
2 RespostasHey 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 Voto
3 Respostas