String In C Language

Jun 19, 20221 like268 views

This tutorial by Simplilearn will explain to you about String In C Language. This Strings in C Complete Tutorial For Beginners will help you understand what is string in c language, string in c program, explain string function with example, declare and initialize string in c.

Agenda
What Is a String in C?
String Declaration in C
String Initialization in C
Operations on Strings
String Functions in C

What Is a String in C?
A string is a sequence of characters represented within double-quotes.
Strings example:
“Simplilearn”
“name”
“hello world”
“123”

String Declaration in C
String declaration syntax:
char string_name[size];
String declaration example:
char str[5];

String Initialization in C
Ways to initialize a string in C:
1. Char str[15] = “Simplilearn”;
2. Char str[ ] = “Simplilearn”;
3. Char str[] = {‘a’, ‘b’, ‘c’, ‘d’,’0’};
2000 2001 2002 2003 2004
d 0
1 2 3 4
Index--
string--
Address-
c
a b
0

Operations on Strings
String operations functions
To find length of a string strlen()
Concatenating two string strcat()
Copying a string to another string strcpy()
Comparing two strings strcmp()

String Functions in C
Functions for reading a strings Functions for writing a string
scanf() printf()
getchar() putchar()
Gets() Puts()

This document discusses string handling functions in C programming. It defines a string as an array of characters and introduces the string.h header file, which contains functions for manipulating strings like strlen(), strcmp(), strcmpi(), strcpy(), and strcat(). It explains what each function does, including getting the length of a string, comparing strings, copying one string to another, and concatenating two strings.

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The document discusses arrays in C programming. It defines an array as a collection of similar data elements stored in adjacent memory locations that share a single name. Arrays allow storing multiple values of the same type using this single name. The document covers array declaration syntax, initialization, passing arrays to functions, and multidimensional arrays. It provides examples of one-dimensional and two-dimensional arrays as well as operations like matrix addition and transpose.

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Pointers in C store the address of another variable. They allow dynamic memory allocation at runtime and can refer to variables of any data type. Pointers help save memory space and improve performance. A pointer variable contains the address of another variable. Common pointer types include null pointers, void pointers, and wild pointers. Pointers are useful for accessing memory locations and forming complex data structures like linked lists. However, pointers also present risks like memory corruption if misused.

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The document discusses key concepts related to functions in C programming including: - Functions take input, perform operations, and return output. The main() function is required. - Function prototypes declare a function's name, return type, and arguments before use. - Function definitions specify the return type, name, arguments, and function body. - Arguments are passed by value by default, but can be passed by reference using pointers. - Recursive functions call themselves with different argument values until a base case is reached. - Variables can have different scopes like global, file, local, and block depending on where they are declared. Static variables retain their value between function calls.

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This document provides an introduction to strings in C programming. It discusses that strings are arrays of characters terminated by a null character. It explains how to declare and initialize strings, and provides examples of simple string programs. It also lists common string functions like strlen(), strcpy(), and strcat(), and provides examples of using each function. The document is intended as a presentation on strings for C programming.

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This document provides an overview of string handling in C programming. It discusses how strings are represented as character arrays and terminated with a null character. It describes declaring, initializing, and manipulating strings through built-in string functions like strlen(), strcpy(), strcmp(), strcat(), strlwr(), and strrev(). Examples are given to illustrate how each string function works and how to use them to process strings as complete entities.

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This document discusses strings in C++. It defines a string as a sequence of characters and provides examples of single character constants like 'h' and string constants like "hello". It describes two ways to declare strings in C++ - using a C-style character array or the standard string class. It also demonstrates different ways to initialize and copy strings, including using string constants, character constants, the length operator, and user input. Finally, it lists some common string functions like strcpy(), strcat(), strlen(), and strcmp().

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The document discusses arrays and strings in C programming. It defines arrays as groups of data items of the same type that share a common name. One-dimensional arrays are declared with a datatype and size, and can be initialized. Multi-dimensional arrays have multiple subscripts. Strings are arrays of characters that are null-terminated. Strings can be initialized and manipulated using functions like strcpy(), strlen(), strcmp(). Examples are provided to demonstrate array and string declarations, initialization, manipulation and differences between the two data structures.

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This document discusses strings in C programming. It explains that a string in C is an array of characters that ends with a null character. Common string functions like strcpy(), strcat(), strcmp() are presented for copying, concatenating, and comparing strings. The document also discusses declaring and initializing string variables, storing strings in memory, input/output of strings, and justification of strings using printf(). Library functions for manipulating strings from the string.h header file are described.

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Strings are arrays of characters that are null-terminated. They can be manipulated using functions like strlen(), strcpy(), strcat(), and strcmp(). The document discusses initializing and reading strings, passing strings to functions, and using string handling functions to perform operations like copying, concatenating, comparing, and reversing strings. It also describes arrays of strings, which are 2D character arrays used to store multiple strings. Examples are provided to demonstrate reading and sorting arrays of strings.

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This document discusses strings in C programming. It defines strings as arrays of characters terminated with a null character. It describes four methods of initializing strings: assigning a string literal with or without size, assigning characters individually with size, and assigning characters individually without size. It also covers string functions like strlen(), strcpy(), strcat(), and strcmp() to get the length, copy, concatenate, and compare strings. Finally, it discusses string arrays as two-dimensional character arrays where each string is terminated with a null character. An example program is provided to print an array of strings.

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