₦airaland Forum

Adeoye11:
Hello! Am new to nairaland and I love to program but new to it have been trying to learn c++ but need a good tutor..

Welcome. Learning c++ as a first language is possible but not easy.
For learning resources, I do have some videos & PDFs that can be of help. I can share them with you for FREE.
Please where do you reside ?

Legolast:
I need someone to please help me solve these questions in c#. I am a c# beginner [self learning]

Scenario 2-1: Creating Properties
You need to create a class named Product that represents a product. The class has a single
property named Name. Users of the Product class should be able to get as well as set the value
of the Name property. However, any attempt to set the value of Name to an empty string or
a null value should raise an exception. Also, users of the Product class should not be able to
access any other data members of the Product class. How will you create such a class?

Scenario 2-2: Creating a Struct
You are developing a game that needs to represent the location of a target in three-dimensional
space. The location is identified by the three integer values denoted x, y, and z. You will create
thousands of these data structures in your program, and you need a lightweight, efficient way
to store this data in memory. Also, it is unlikely that you will need to inherit any other types
from this location type. How should you represent the location in your program?

Scenario 2-3: Overriding the ToString Method
Say you are writing code for a Product class. The Product class contains the name and price
of a product. You need to override the base class (System.Object) method ToString to provide
information about the objects of the product class to the calling code. What code do you
need to write for the Product class in order to meet this requirement?

Scenario 2-4: Creating and Handling Events
Imagine that you are writing code for creating and handling events in your program. The
class SampleClass needs to implement the following interface:

public delegate void SampleDelegate();
public interface ISampleEvents
{
event SampleDelegate SampleEvent;
void Invoke();
}

You need to write code for the SampleClass and for a test method that creates an instance of
the SampleClass and invokes the event. What code should you write?

Show what (some codes) you have tried and indicate where exactly you are finding hard to get.

obytex:
YES TP LINK link router tl-mr3420

How is the Network setup ?
PC -> Switch -> Router ?
PC -> Router ?

How are the 10 Routers interconnected ?

obytex:
pls help me sort this issues. i'm working in a hotel we have up to ten desktop computer and ten TP Link routers. recently i deploy another routers. but i noticed whenever i put it on (cos the router is in the conference hall) all the desktop computer will stop browsing and when i trouble shoot, i will be seeing DNS NOT RESPONDING. but if i off it all will start browsing. i also notice that this happens to only desktop computers while the wifi is working well. please what can i do.

You have ten(10) ROUTERS ? Do you mean SWITCHES?

Abdulnur:
Hi everyone,

I learnt JavaScript is (mainly) for front end development.
Can't it be used as a server side language thereby replacing PHP?

and

PHP, I learnt is for back end development.
Cant it be used for front end ? There replacing JavaScript?
[hr/]

You may wonder why I'm looking forward to learning one only.

I have a very little time with me(3 months) and I need to, at least, be a full stack developer to understand (not to create) how web apps work.


If any of my pre mentioned ways through won't work, what is the best way possible?

Thank you, Abdulnur.

I will suggest you go with the PHP route. it is easy enough to grab the basis within that time frame.

imadiyi:
Hello Nairalanders, please where can I download Visual Studio 2017 for free or a cracked version? Please help a brother!

Visual studio 2017 Community edition is free

BabyApple:
what is the value of arr?

40, 100, 1, 5, 25, 10

View

Math.max.apply(null, arr);

as

Math.max.apply(40, 100, 1, 5, 25, 10)

BabyApple:
i still dont understand your explanation in my post.

ok. please go to that post and reply my comment. Thanks.

BabyApple:
<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Array Sort</h2>

<p>The highest number is <span id="demo"></span>.</p>

<script>
var points = [40, 100, 1, 5, 25, 10];
document.getElementById("demo".innerHTML = myArrayMax(points);

function myArrayMax(arr) {
return Math.max.apply(null, arr);
}
</script>

</body>
</html>


My question is where does (null, arr); comes from

null is built in Javascript . it is used to represent "nothing"
Javascript apply function accepts two (2) parameters. The first parameter is optional . passing null to it means no value.
The arr is used as a parameter in the myArrayMax function definition. parameters are used to pass data to a function.
In your code, the arr is used to pass the values in your point arrays to the myArrayMax function
parameters are defined by programmers.

NaHiim:
Please house, forgive my ignorance but I've been trying to wrap my head around the bolded code.
I need someone to please explain.



var bricks = [];
for (var c=0 ; c<column ; c++)
{
bricks[c] = [];
for (r=0 ; r<row ; r++)
{
bricks[c][r] = {x:0, y:0};
}
}

bricks[c][r] = {x:0, y:0}; => this line is assigning an object literal to the cell in cth column, rth row in the bricks multidimensional arrays

Nicolars:
I understand this method well

I'm talking of using two return statements in a function

Ok. it is not possible to return multiple values using two return values.
Your code is valid but it will only return a because return b is never reached b4 the function exits.

Nicolars:
Sylvseter,or anyone else who's good in c++ I have a question

How do you return two values in a function..... Not using pointers..

Example a function like this
Int var () {
Int a,b
cin>>a;
cin>>b;


return a;
return b;
}


Is this function valid... If it is, what would be stored in the main function... If its not valid.... How can it become valid

To return more than one value from a function, you could use references

Below is One Way to do it using passing by references:

void var(int &a, int &b)
{
    std::cin >> a;
    std::cin >> b;
}

int main()
{
    int a, b;
    var(a, b);

    std::cout << "A is = " << a << " and B is = " << b;
	return 0;
}

VictorR1:
What markup language does nairaland use for styling it's posts & comments? eg: the smiley's, bold, quotes, etc. I would have thought they were HTML but HTML comes in angled brackets: "<element></element>" while this nairaland ones are in square brackets: "[element][/element]".

read this: https://en.wikipedia.org/wiki/BBCode

Sofiyyah01:
PLEASE I NEED HELP ON CODE TO CREATE GAME GIVING USER OPTION AND TELLING THE USER IF THE ANSWER GIVEN IS CORRECT, ALSO TELLING THE RIGHT ANSWER WITH FLOWCHART.

can we see what you have tried ?

#include <iostream>
#include <string>
#include <fstream>
#define NL '\n'

using namespace std;
int main()
{
....ofsream ofstream myfile;
........

NB : you can make the work less tedious for us by providing the errors messages!

KazukiIto:
Cc BlueMagnificent
Cc CodeMarshal. I am very loyal Sirs...

Respect Boss !!!

Euroadams:
Pls I need coding gurus

What for ?

NOVEL, PAGE , STORY

gidimasters:
yea, i know i'm into java but lets take for example, as a networker u need ccna, cisco certification.... buh as my area is mainly web and prog, what/which certifications can make my cv sweet... maybe online certification sha

Your degree is enough for now. Work more on your programming skills (have a portfolio).

gidimasters:
Tho my concentration area is basically Web Design&Development and little of programming(java).

The Area marked red in the above Quote is one skill you will need.

Sugarhugs:
I will jus learn ruby python is too confusing for now

Calm down and check my Edit.

Sugarhugs:
Abeg I understand am jor, don type Monty tire e no gree work

Don't give up ok. Do check my Edit.

Sugarhugs:
Have been tryna pass the python place at codeacedamy for over 30 mins now and I can't so frustrating with all ther maths equations agh ! I feel like I'm taking maths class check this out below

+---+---+---+---+---+
| M | O | N |T  | Y |
+---+---+---+---+---+
  0   1   2   3   4

--When working with strings, you start counting from 0.
--- The Question is asking you to assign the fifth letter in MONTY (i.e "Y" to variable "fifth_letter"
Something like this: fifth_letter = the fifth letter in MONTY , which is "Y". below is how to do it in code

fifth_letter = MONTH[4] use fifth_letter = "MONTY"[4] // i am sorry for the mistake! 

// 4 is the index of the letter "Y" , which is the fifth letter in "MONTY"

emmanuelatas:
Which one will be more profiting? IDE or Text Editor.

IDE

dhtml18:
codemarshal, them don epp you ni? this no be your original id now? by the way, this your code long like River Niger.
Meanwhile, Kudos to all you guys that have been writing codes o, i have only been contributing to this thread with my mouth.

Master I sight you !. This is the Id I have been using. Your contribution was useful. Thanks.

C++ Qt:

#include <QStringList>
#include <iostream>
QString parseString(QString data);

int main(int argc, char *argv[])
{
    QString data = "Country\tState\tTown\r\nNigeria\tLagos State\tLagos\r\nUSA\tTexas\tDallas\r\n";

    std::cout << parseString(data).toStdString() << std::endl;

    return 0;
}

QString parseString(QString data)
{
    QStringList rows = data.split("\r\n";
    /*rows contains
     *          0                           1
     * [Country\tState\tTown][Nigeria\tLagos State\tLaogs\t]....
     *
   */
    QStringList columnHeader = rows[0].split("\t";
    /*CoulumnHeader Contains
     *      0       1      2
     * [Country][State][Town]
    */

    data = "[";
    for(int x =1; x < rows.size()-1; ++x)
    {
        data += "{";
        QStringList column = rows[x].split("\t";
        /*column[0] cotains
         *      0       1           2
         * [Nigeria][Lagos Sate][Lagos]        
		 *
        */
        for(int j =0; j < column.size(); ++j)
        {
            data += "\n\"" + columnHeader[j] + "\": \"" + column[j] + "\"";
            /*
             * 	columnHeader[0] + column[0] ==> Country Nigeria
             *  coumnHeader[1] + column[1] ==>  State   Lagos State
            */
		
		//dont add comma to the last column
            if( j < column.size()-1) data += ",";
        }
        data += "\n}";
		
		//dont add comma After the last row
        if(x < rows.size()-2) data += ",";
    }
    data += "]";

    return data; 

}

OutPut:

[{
"Country": "Nigeria",
"State": "Lagos State",
"Town": "Lagos"
},{
"Country": "USA",
"State": "Texas",
"Town": "Dallas"
}]

AlphaCentauri:
so basically what Is the purpose of this program ? i want to be able to type in stuff like 5 degrees 29 minutes 5 seconds CAPRICORN and then it tells me what time this corresponds to on the 24 hour clock assigned to the 12 houses

Please, are you adding CAPRICORN(a house name) to the data you intend to input ?

@ paranorman

noordean:
Post your real code

Let us see the code that is not working properly.

Silverman42:
The correct syntax should be:
"INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3)"
Where value1, value2 and value3 = integer or character.

His syntax is valid. You are not always required to specify the column names.

paranorman:
Oga codemarshall08, how do one check if a number is odd or even or multiple of a particular number or if a number is a factor or so?

Are you requesting logic or codes ?