Notes with worthy tutorials
The this Pointer: When a function of a class is called by an object of that class, each variable gets an pointer which points to that calling object, meaning that this variable was called by that object or this variable is under that object. This pointer is called this pointer. To clarify consider the following … Read more
Static Data Member and Difference with Non-static Data Member: In general when we declare some objects of a class, each object is allocated with memory space for each variable of the class separately under them as given below, But in the case of static data member only one memory location will be allocated and that … Read more
Friend Function: Friend functions are those functions which can access all the functions and variables of a class though it is not a member function of that class. Actually to share a function among two or more classes friend functions are used. If it is declared so, then it will able to access all variables … Read more
Return of an Object from a Function: Yes it is possible to return an object from a function. An object can be returned to the call of its function by another object. For the justification considering the following program, //Returning of object#include<iostream.h>class myclass{ int i; public: void set_i(int n){ i=n; /*Ln 3*/ } int get_i(){ … Read more
Passing Objects:An object can be used as a function argument in the following two ways, pass-by-value pass-by-reference Using the first option given above we pass the value of an object to a function where the value of the used object will not change, but only be used. Use of the second will change the object … Read more
Market Demand For a Commodity : The market demand for a commodity means the total demand for a commodity made by all the individuals in the market. The market demand for a commodity gives the alternative amounts of a commodity demanded per time period, at various alternative prices, by all the individuals in the market. … Read more
Shift in Demand Curve : Shift in demand curve means the change in demand curve. This change will have to be for the change in ceteris paribus. That is when the price of a commodity remains constant and the other things which can affect the demand of the commodity changes, a shift can be found … Read more
Purpose of Using Command Byte A: Command byte A is used select modes, working functions of the ports. So the importance of using command byte A is that we can define on which mode it will be working on and which port will be used for which function such as input or output. For example, … Read more
Handshaking: Handshaking is a I/O control method to synchronize I/O devices with the microprocessor. As many I/O devices accepts or release information at a much slower rate than the microprocessor, this method is used to control the microprocessor to work with a I/O device at the I/O devices data transfer rate. Example: Supposing that we … Read more
Data structures are systematic ways to organize, manage, and store data in order to facilitate efficient access and modification. They define the layout of data, the relationships between different data elements, and the operations that can be performed on the data. Common data structures include arrays, linked lists, stacks, queues, trees, and graphs. Each of … Read more