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Which method is generally used by companies/businesses(out of curiousity)? Over the year I've been learning PHP, HTML, CSS, Javascript and jQuery. I was wondering if I should also learn how to use Wordpress.

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What exactly does it mean when an algorithm has a run time of Omega(nlgn) or Theta(n^2), etc. From what I can tell, Big O is used to show the worst case(?) while Omega is best(?) and Theta is either(in between O and Omega?. I'm having a hard time understanding this …

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Hi, if we take for example 32bits: 1111 1000 0000 1000 0001 1111 1100 0000, how does it become (24bits) 1011 1110 0011 0110 1111 0110 after RLE is applied? Why/how does 1011 represent the 5 1's at the start of the 32bit number? I'm trying to understand the concept …

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I don't understand how it works. What are lines 19-33 doing exactly? Why did they do "arraySize = obj.arraySize;" ? [CODE]#include <iostream> #include <iomanip> using namespace std; class NumberArray { private: double *aPtr; int arraySize; public: NumberArray(NumberArray &); NumberArray(int size, double value); ~NumberArray() { if (arraySize > 0) delete [] …

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Hi, I just started learning more about class/objects. What is the purpose of using 'this' pointers and static members? How exactly do you use them? These are some small examples: [CODE]class SomeClass { private: int num; public: void setNum(int num) { this->num = num; } }; [/CODE] What is 'this->' …

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Not really understanding the concept, why did they use "Person *pPerson = new Person("Susan Wu", 32);" and where did ".length();" come from? Also when "Rectangle *pRect" is put into a parameter, pRect is pointing at the address of the object rect, right? [CODE] #include <iostream> #include <string> using namespace std; …

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I'm really lost on this topic. I'm trying to study for an exam. 1)When the symbol '&' is in front of a variable, it is referring to the address right? How is it different from a reference parameter? I keep getting them mixed up. 2)By dereferencing it, it means that …

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I started learning about objects and classes this week and it's really confusing. I'm trying to make a class/object to read data from an input file and use the values to calculate the profit loss/gain(in percent and numbers). So far when I try to run the program I get an …

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I'm trying to read this input from a text file but whenever I try to output it, it shows up as 00000. Input: IBM 100 93.2 98.6 MER 200 67.2 43.89 QQQ 300 78.9 70.0 C 200 35.78 50.02 CSCO 400 45.67 57.23 This is what I have so far: …

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