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 AnswersHey 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 Votes
3 Answershello guys? how are you. i am zeeshan ali from pakistan. i have been in touch with this app for a very long long time. i have found so many friends awesome.. and we do combine study over the internet. anyone of you is interested then join us on facebook by searching this number 03033951255
0 Votes
4 AnswersSo I'm trying to add a picture to my website atm and I'm new to this so I got this app. The image is a .pgn and even if I say <img src="thename.png" /> it doesn't work on the site. I've updated it from Filezilla obviously but it just shows a little jpg logo and doesn't display my pic. What am I doing wrong?
0 Votes
5 AnswersCan anyone help me to code this
Write a method 'timesTable()' which accepts an integer value num from the keyboard and uses it to print 'times table' of itself in a structured format. Your output must include a header row. For example, if the user enters 5, your program's output should be:
5 Times Table
1 5 5
2 5 10
3 5 15
4 5 20
5 5 25
6 5 30
0 Votes
5 AnswersHow can I read from a file this line
19 34 Gateway Arch - St. Louis, MO.
The first digit is age, second timeUsed, and the rest description. So I want to read them and store them in a variable.
The code insime my while loop of my File is int age = reader.nextInt();
Int Tused = reader.nextInt();
Description = reader.next()
0 Votes
4 Answersabout 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 Answershow to write a program that reads in a character <char> from the keyboard and then displays one of the following messages
1. if<char> is in lowercase letter the message
"the uppercase letter corresponding to char is..."
2. if<char> is in uppercase letter the message
"the lowercase letter corresponding to char is..."
3. of char is not a letter, the message char is not a letter.
0 Votes
3 AnswersWrite and test a program that solves quadratic equations. A
quadratic equation is an equation of the form ax2+ bx + c =0 ,where a,b and c are given coefficient and x is the unknown The coefficients are real number inputs ,so they should be declared of type float or double Since quadratic equations typically have two solutions ,use x1 and x2 for the solutions to be output These should be declared of type double to avoid inaccuracies from round-off error
-1 Vote
3 AnswersI have a PHP multiD array like array($arrayA, $arrayB, $arrayA, $arrayC, $arrayC, $arrayA...........)
ho can I get a resulting array which have distinct elements from this array and sorted with the more occurance first like...
array( $arrayA, $arrayB, $arrayC)
because array $arrayA was 3 tumes in first array so it comes first in resulting array.
0 Votes
3 AnswersYou shall write a program that reads, from standard input, an arbitrary number of case-insensitive card descriptions, the totality of which shall be considered a hand. When standard input is exhausted, the program shall print one line to standard output describing the value of the hand. The program shall generate no other output.
0 Votes
3 Answersi have two tables table_1 in database_1 and table_a in database_A. from different programs. they contain 60% the same columns. 40% is different. the columns are sorted differently. I would like to to edit only one of them an update the other automatically. Any idea on how to? Thank you in advance. With kind regards Jo Pi
0 Votes
3 AnswersWrite a C program to mimic the popular game tic-tac-toe for two players. It takes positions as input from both the players and put appropriate symbols for respective players. Eventually it checks the winning combinations for the players and prints the result in favor of Player one or player two or declares draw.
0 Votes
2 Answerscan someone tell me how to make it impossible for a user to type a 'userchoice1[x]' value that does not range from 1 - 10.
If you also know a way I can make the user input another value for the 'userchoice1[x]' variable if it is less than 1, I'll appreciate you share the knowledge with me.
please see the short code below
1 Vote
2 Answers#include <iostream>
using namespace std;
class A{
public:
void f1();
};
class B : public A{
public:
virtual void f1();
}
int main()
{
A * obj = new B;
obj.f1();
}
Ques: can we write virtual before an overridden function from the base class?? if yes which f1() should it call base class f1() or derived class f1()???
0 Votes
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