by: Dan Perl |
last post by:
There is something with initializing mutable class attributes that I am
struggling with. I'll use an example to explain:
class Father:
attr1=None # this is OK
attr2= # this is wrong...
|
by: Fabian Müller |
last post by:
Hi all,
my question is as follows:
If have a class X and a class Y derived from X.
Constructor of X is X(param1, param2) .
Constructor of Y is Y(param1, ..., param4) .
|
by: Neil Zanella |
last post by:
Hello,
When an "std::map<int, int> foobar;" statement appears in a C++ program
followed by a statement of the form "foobar;" where nothing has ever
been inserted at position 123 into map foobar,...
|
by: Mike |
last post by:
Hello
In the following code,why are there 2 different Class1's.Is one a class
definition and the other a function?
namespace Music
{
public class Class1
{
public Class1()
{
|
by: John |
last post by:
Hi,
Maybe someone can help me with the following:
"The first task by any derived class constructor is to call it’s direct or
indirect base class constructor implicitly or explicitly", reads the...
|
by: Dave A |
last post by:
I have a class that does not have a default constructor. The nature of the class inherently excludes it from having one and to put one in will blatantly misrepresent the object that it is modelling....
|
by: shuisheng |
last post by:
Dear All,
I am wondering how the default copy constructor of a derived class
looks like. Does it look like
class B : public A
{
B(const B& right)
: A(right)
{}
|
by: Joel |
last post by:
Is it true that if we don't specify a default constructor for
our class, then the C# compiler provides us with its own
that zeroes (or assigns default values) to the data members?
I wrote a...
|
by: Mark |
last post by:
I have a problem with a template class defined:
// start matrix.h file
template <class Tclass Matrix
{
public:
Matrix() { // default constructor }
Matrix(const Subscript rows, const...
|
by: hill.liu |
last post by:
Hi,
I stuck into this problem that I can't figure it out.
Here is the class definition:
class ctest {
public:
ctest(void) { cout << "ctest default constor" << endl; };
ctest(ctest& c) {...
|
by: taylorcarr |
last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
|
by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
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