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Lecture 11 : Local, Global and Static variable monolithic vs modular programming, Storage classes, storage class cont.., pointer in C programming language

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Lecture : 11 Local, Global and Static variable  Local variable:-   Variables that are defined with in a body of function or block. The local variables can be used only in that function or block in which they are declared.  Same variables may be used in different functions such as  function() { int a,b; function 1(); } function2 () { int a=0; b=20; } Global variable:-   the variables that are defined outside of the function is called global variable. All functions in the program can access and modify global variables. Global variables are automatically initialized at the time of initialization.  Example: #include<stdio.h>  void function(void);  void function1(void);  void function2(void);  int a, b=20; void main() { printf(“inside main a=%d,b=%d \n”,a,b); function(); function1(); function2(); } function() { Prinf(“inside function a=%d,b=%d\n”,a,b); } function 1() { prinf(“inside function a=%d,b=%d\n”,a,b); } function 2() { pri...
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Lecture 12 : Pointer comparison, increment decrement , precedence level of pointer, pointer comparison , pointer to pointer, pointer to structure , pointer initialization, accessing elements in C programming language

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Lecture 12 Pointer comparison, increment decrement , precedence level of pointer, pointer comparison , pointer to pointer, pointer to structure , pointer initialization, accessing elements in C programming language POINTER A pointer is a variable that store memory address or that contains address of another variable where addresses are the location number always contains whole number. So, pointer contain always the whole number. It is called pointer because it points to a particular location in memory by storing address of that location. Syntax - Data type *pointer name; Here * before pointer indicate the compiler that variable declared as a pointer.  e.g. int *p1; //pointer to integer type  float *p2; //pointer to float type  char *p3; //pointer to character type When pointer declared, it contains garbage value i.e. it may point any value in the memory. Two operators are used in the pointer i.e. address operator(&) and indirection operator or dereference operato...
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Career opportunity in Information Technology (IT). About Jobs in IT salary and work loads

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Scopes in Information Technology Introduction You will find a lot of definitions of information technology on many websites, but According to detailed analysis of the field I drew a definition of my own. Information technology is the use of computers to store, retrieve, transmit and manipulate data and informations. Career in Information Technology (IT) Information technology industry employs nearly 6 million individuals across a range of industries, from technology to healthcare, finance and education. As an occupational field, information technology is projected to be one of the fastest growing in the nation, collectively producing 18 percent additional job openings nationally between 2012 and 2022. The following page serves as a high-level introduction to information technology, as well as a discussion about landing a job in the industry. Jobs in IT 1. Software developer : Software developers invent the technologies we sometimes take for granted. For instance, that app that r...
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