1. A string is a one-dimensional array of characters terminated by a null character. Strings can be initialized during compilation or at runtime.
2. Common string functions like scanf(), gets(), getchar() are used to input strings while printf(), puts(), putchar() are used to output strings.
3. Library functions like strcpy(), strcat(), strcmp(), strlen() allow manipulation of strings like copying, concatenation, comparison and finding length.
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.
This document provides an overview of string operations in C including:
- How strings are stored in memory with a null terminator
- Input and output of strings using scanf and printf
- Common string library functions like strcpy, strcat, and strlen
- Examples of justifying and manipulating strings
C Tokens, Escape sequence, Delimiters, Variables, Data types, Constants/ Literals, Expressions, Statements and Comments
https://github.com/ashim888/csit-c
This document discusses various string methods in Python including upper(), lower(), capitalize(), startswith(), endswith(), strip(), split(), and join(). It provides examples of how to use each method, such as converting strings to uppercase and lowercase, checking if a string starts or ends with certain text, stripping leading and trailing characters, and splitting or joining strings.
The document discusses one-dimensional and two-dimensional arrays. A one-dimensional array uses a single index to store elements in a list, while a two-dimensional array uses two indices to store elements in a rows and columns format. The key aspects of arrays covered include declaration syntax specifying the data type, size, and initialization of elements. Common applications of arrays are also listed such as using pointers, passing to functions, and dynamic allocation.
The document discusses various string functions in SQL Server that can manipulate and return values from string inputs. It lists functions such as ASCII, CHAR, LEFT, RIGHT, LEN, LTRIM, REPLACE, SUBSTRING, STUFF, and others. For each function it provides the syntax, arguments expected, and examples of usage. The functions allow performing operations like extracting parts of a string, searching/replacing substrings, concatenating strings, and more.
This document discusses computer science functions and their key concepts:
- Functions are subroutines or blocks of code that perform a specific task and can be reused. They take parameters as inputs and return an output.
- The interface of a function defines what it can do from the outside, while the implementation contains the internal code that carries out its behavior.
- Pure functions always return the same output for given inputs, while impure functions may produce side effects or different outputs for the same inputs.
- Examples demonstrate defining functions with and without parameters, recursive functions, and using functions to solve problems like determining if a number is even or odd.
Data types in C include primary (fundamental) types like integers and floating-point numbers, as well as derived and user-defined types. Primary types include integers of various sizes (char, short, int, long) that can be signed or unsigned, and floating-point types like float, double, and long double. Integer types have size and value ranges that depend on the machine, such as 8-bit char from -128 to 127. Floating-point types have prescribed sizes and precision levels. User can define their own types using typedef to create new type names, or enum to define enumeration types with named values.
A pointer is a variable that stores the memory address of another variable. Pointers allow functions to modify variables in the caller and are useful for handling arrays and dynamic memory allocation. Pointers contain the address of the memory location they point to. Pointer variables can be declared to hold these memory addresses and can then be used to indirectly access the value at the addressed location.
This document discusses string handling in C++. It defines a string as a collection of characters written in double quotation marks. Strings can be declared and initialized similarly to character arrays. The cin object and cin.getline() function can be used to input strings with or without spaces. Arrays of strings are two-dimensional character arrays that store multiple strings. Common string functions include memcpy() to copy characters, strcmp() to compare strings, strcpy() to copy one string to another, strlen() to find the length of a string, and strcat() to concatenate two strings.
Arrays allow storing and accessing a collection of related data elements. An array contains elements of the same data type and stores them in consecutive memory locations. Each element has an index that identifies its position. Arrays provide advantages like code optimization and ease of traversal but have a fixed size set at declaration. Common array types include single-dimensional, two-dimensional, and multi-dimensional arrays. Elements are accessed using their index in square brackets after the array name.
1. A string is a one-dimensional array of characters terminated by a null character. Strings can be initialized during compilation or at runtime.
2. Common string functions like scanf(), gets(), getchar() are used to input strings while printf(), puts(), putchar() are used to output strings.
3. Library functions like strcpy(), strcat(), strcmp(), strlen() allow manipulation of strings like copying, concatenation, comparison and finding length.
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.
This document provides an overview of string operations in C including:
- How strings are stored in memory with a null terminator
- Input and output of strings using scanf and printf
- Common string library functions like strcpy, strcat, and strlen
- Examples of justifying and manipulating strings
C Tokens, Escape sequence, Delimiters, Variables, Data types, Constants/ Literals, Expressions, Statements and Comments
https://github.com/ashim888/csit-c
This document discusses various string methods in Python including upper(), lower(), capitalize(), startswith(), endswith(), strip(), split(), and join(). It provides examples of how to use each method, such as converting strings to uppercase and lowercase, checking if a string starts or ends with certain text, stripping leading and trailing characters, and splitting or joining strings.
The document discusses one-dimensional and two-dimensional arrays. A one-dimensional array uses a single index to store elements in a list, while a two-dimensional array uses two indices to store elements in a rows and columns format. The key aspects of arrays covered include declaration syntax specifying the data type, size, and initialization of elements. Common applications of arrays are also listed such as using pointers, passing to functions, and dynamic allocation.
The document discusses various string functions in SQL Server that can manipulate and return values from string inputs. It lists functions such as ASCII, CHAR, LEFT, RIGHT, LEN, LTRIM, REPLACE, SUBSTRING, STUFF, and others. For each function it provides the syntax, arguments expected, and examples of usage. The functions allow performing operations like extracting parts of a string, searching/replacing substrings, concatenating strings, and more.
This document discusses computer science functions and their key concepts:
- Functions are subroutines or blocks of code that perform a specific task and can be reused. They take parameters as inputs and return an output.
- The interface of a function defines what it can do from the outside, while the implementation contains the internal code that carries out its behavior.
- Pure functions always return the same output for given inputs, while impure functions may produce side effects or different outputs for the same inputs.
- Examples demonstrate defining functions with and without parameters, recursive functions, and using functions to solve problems like determining if a number is even or odd.
Data types in C include primary (fundamental) types like integers and floating-point numbers, as well as derived and user-defined types. Primary types include integers of various sizes (char, short, int, long) that can be signed or unsigned, and floating-point types like float, double, and long double. Integer types have size and value ranges that depend on the machine, such as 8-bit char from -128 to 127. Floating-point types have prescribed sizes and precision levels. User can define their own types using typedef to create new type names, or enum to define enumeration types with named values.
A pointer is a variable that stores the memory address of another variable. Pointers allow functions to modify variables in the caller and are useful for handling arrays and dynamic memory allocation. Pointers contain the address of the memory location they point to. Pointer variables can be declared to hold these memory addresses and can then be used to indirectly access the value at the addressed location.
This document discusses string handling in C++. It defines a string as a collection of characters written in double quotation marks. Strings can be declared and initialized similarly to character arrays. The cin object and cin.getline() function can be used to input strings with or without spaces. Arrays of strings are two-dimensional character arrays that store multiple strings. Common string functions include memcpy() to copy characters, strcmp() to compare strings, strcpy() to copy one string to another, strlen() to find the length of a string, and strcat() to concatenate two strings.
Arrays allow storing and accessing a collection of related data elements. An array contains elements of the same data type and stores them in consecutive memory locations. Each element has an index that identifies its position. Arrays provide advantages like code optimization and ease of traversal but have a fixed size set at declaration. Common array types include single-dimensional, two-dimensional, and multi-dimensional arrays. Elements are accessed using their index in square brackets after the array name.