Q&A Discussions
Apart from the Learn Java app, what books and internet resources would any helpful person on this forum suggest to a college freshman(me) taking intro to CS, and struggling?
Right now, I'm struggling with writing my own for loops and nested for loops.
I'm really confused.
Usually, I'm very good coming up with solutions to analytical problems, but intro to CS is making me feel really dumb.
I sincerely need help.
0 Votes
7 AnswersI 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
0 Votes
2 Answers
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 Vote
2 Answers
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 Vote
1 Answer
I can't get this for loop to change the 0 to a 1. I need it to count to 30 by 5s. I would appreciate any help. Here is the code.
0 Votes
2 Answers
why we need to use single line comments
the slashes tell the coiled to ignore everything that following until the end of line
if we will not use // print " hello world "
it will not changes statement
0 Votes
3 Answers
I'm completely new to programming, start uni this year and I need to get a grip of Java as it's mandatory. what should I do in order to fully understand terminology, basics, principle's etc. I have seen the Java coding but do not understand one thing.
1 Vote
3 Answers
C SHARP PROBLEM
1 Vote
2 Answers
Hi prgmers, I got a big prob and I need ur help. "I jst write my code and at the time of compiling & running I get an error msg
0 Votes
1 Answer
Any rule of thumb for using switch vs if-else for performance reasons? Basically like let's say if you need to use switch case if there are more than 4 conditions?
-1 Vote
2 Answers
I need the user to input a grade A B C or D and i have assigned int to these var so that i can use it to multiple another variable and the output final answer, how do i write the code please
0 Votes
3 Answers
When using Scanner is there a way to display at the top of the response entry box? Currently in the Code Playground it just displays "it looks like your application needs some input" but when requesting multiple input need a way to tell what is needed.
2 Votes
2 Answers
good coders i need ur help plz.
in my assignment there is this tricky question.
write a program to calculate sum of the series: 1 - 1/2 + 1/3 -1/4 +..... -n
until the term that is less than 0.0001(1/10000) is reached.
0 Votes
3 Answers
Hello everybody,
I am working on an App where I need to animate every single character in a string(text label).
I want them to fade in or out randomly.
Please any help would be appreciated.
Thank you
0 Votes
2 Answers
While prototyping friend functions in a class is it necessary to always pass the address of the object as parameter?If so why is it that we have to pass address as parameter..In programs involving compositions we never used addresses...Why is the need for address of the objects while using friend?
4 Votes
1 Answer
Thats very basic of variables. Concepts and flaws of narrowing and widening need to be included. Anyways nice work. I would like to have a lot of great questions to conquer OCJP.
0 Votes
1 Answer
I Ive done everything steps has been said from this lesson. still not working.. i had 32bt windows os.. I found out on youtube that need to download JRE also along with JDK. what do you think guys? jdk alone is not workin ..
0 Votes
3 Answers
can i get a html editor on my phone
is it only done on PC 💻
how can I save html document?
pls, I need clear explanation on how to get it on my PC
0 Votes
2 Answers
hey guys, i searching for a database system that can handel with node.js, noSQL and mongoDB. Also it need be suitable with phpstorm. Would be very nice if you can give me some help :)
P.S. if the cost are slightly bigger, that is no problem at all.
1 Vote
2 Answers
I have an Input.txt file , output.txt file, and my .py file, i need to read all text from input file and add it at the START of output file.How can i do this?
0 Votes
1 Answer
hello every one
it is a usefull advice in learning this html course , leave html5 at the bigining & learn java script completly because in some sections (from 10/19 to end of the course) you need basic & even advance knowledge of JS . then your able to return to previous course & learn html5 easier.
goodluck.
1 Vote
3 Answers
about svg. Q1: when setting up layout size, height & width, do we need an extra layout for some things different from the first layout. ie two layouts?
Q2: what is the purpose of the size? how does it affect graphics in it?
Q3: how to treat problem of over lapping or/and over ridding?
1 Vote
2 Answers
I need to use bootstrap for a project i know i can use one from getbootstrap but is there anywhere i can learn to write my own code for it if you got any source please let me know.
0 Votes
2 Answers
I need to design a recursive function called replicate recur which will receive two arguments: times which is the number of times to repeat and data which is the number or string to be repeated.
The function should return an array containing repetitions of the data argument.
For instance, replicate_recur (3, 5) should return [5,5,5].
If the times argument is negative or zero, return an empty array. If the argument is invalid, raise ValueError.
0 Votes
4 Answers
Hi, I need assistance aka HELP!
I've done this calculation in various ways some of printed nothing but zeros non stop.
Using while loop calculate all numbers 1 to 1000 add numbers to sum = sum + i
int sum = 0;
// use a while loop to calculate the sum of 1 to 1000
While(int sum = 0; sum >= 1000; sum = sum + I){
System.out.println(sum);
}
0 Votes
4 Answers
I made a WindowBuilder class on Eclipse, but when I try run that class, it say that I need to put a "public static void main(String[] args){}", ok, I put it into the class, and some elements are incompatibles with the "public static void..."
0 Votes
2 Answers
How can I make a reference for a list of variables. If false i want the system to check through all my variable to make sure they are false.
Code-
var2 = "Tanner"
var3 = "Jake"
question = input('What is your name? ')
if question == var2:
print('\nWelcome Back Tanner!')
if question == var3:
print('\nWelcome Back Jake!")
if question !=( This is where i need help!)( Is the != the correct way to write not equal?)
0 Votes
4 AnswersHello I need help on my assignment. I have a maze using symbols like - and |. It is a constant char array. Can i get help on how I can draw the maze on the screen? I'm not sure on how to write this code. Thanks for any help.
0 Votes
2 Answers
Hi guys..I need your help..In my project, there is a task to create custom album for videos.album creation working fine.but i want to delete specific video from that album..Deleting whole custom album working.But struggling to delete specific video from album? pls give any solution or references ...thanks in advance
0 Votes
2 Answers
i want to write a line of code that looks like this
if (a>10){
I know that in c++, you cannot just have greater than (>) or less than (<). j
it must be (>=) or (<=). But the code I need to write does not include the equal to(=). it just has to be greater than 10. What do I do?
1 Vote
2 Answers
can anyone here help me figure out the correct codes to use.. i want to make a wifi mic app that send an output audio to raspberry pi3. then to do so, i need to input an IP address from the app i plan to make.
-1 Vote
1 Answer
so far in section 1 question 2 area all of the videos have been ads that if you skip the add it just brings up the questions you need to answer. also if you play the add all the way thru you get the same exact thing. luckily I'm using this as a refresher course but I would think if I didn't know anything about c++ then I could be pretty lost missing videos.
0 Votes
2 Answers
using a while loop create a guessing game program that keeps asking the user to enter a number until the user enters the number 7. You will need to create and initialise an int variable to zero. You can then use this variable as the condition in your while loop ( while the number is not equal to seven) Then in the while loop ask the user to enter a number and store the number entered in the number variable that is in the conditions of your loop.
0 Votes
1 Answer
Hot today
Sticky position
3 Votes
Help please?
3 Votes
Ejercicio Pytho
0 Votes
Online voting system
2 Votes
What is that z for
0 Votes
Suggestions needed
4 Votes