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In C programming, the scope of a variable defines where in the program that variable can be accessed or referenced. Variable scope determines the visibility and accessibility of variables throughout different parts of your program. Syntax // Global scope data_type variable_name; int main() { // Local scope data_type variable_name; return 0; } Types of Variable Scope C language supports two main types of variable scope − Local Scope: Variables declared inside a function or block are only accessible within ... Read More
The ::first-line pseudo-element in CSS selects and styles the first line of text within an element. It is denoted by double colons and allows you to apply specific formatting to just the first line of a block-level element's content. Syntax selector::first-line { property: value; } Allowed Properties The ::first-line pseudo-element only accepts certain CSS properties − Property TypeExamples Font propertiesfont-family, font-size, font-weight Color propertiescolor, background-color Text propertiestext-decoration, text-transform, line-height Border propertiesborder, border-radius Example: Basic First Line Styling The following example applies background color and text ... Read More
Bitwise operators in C operate directly on bits (binary representation) of operands. They are highly efficient for arithmetic operations like multiplication and division by powers of 2. The left shift () operators can perform these operations faster than traditional arithmetic operators. Syntax // Multiplication by 2 result = number > 1; Bitwise Operators Overview Operator ... Read More
Tabulation refers to the systematic arrangement of data in rows and columns to facilitate comparison, analysis, and understanding. It is a fundamental statistical tool that transforms raw data into an organized format, making it easier to identify patterns, trends, and relationships within the dataset. Key Concepts Tabulation is more than simply placing data in a table format. It follows specific statistical principles to ensure accuracy, clarity, and meaningful presentation. The process involves organizing data according to certain characteristics or variables, enabling researchers and analysts to draw meaningful conclusions from complex datasets. Statisticians and researchers rely on tabulation ... Read More
The CSS z-index property is used to control the stacking order of positioned elements. Elements with higher z-index values appear in front of elements with lower values, creating layers on the page. NOTE − If overlapping elements do not have z-index specified, the element that appears last in the HTML document will show up on top. Syntax selector { z-index: value; position: relative | absolute | fixed | sticky; } Important: The z-index property only works on positioned elements (position: relative, absolute, fixed, or sticky). ... Read More
This C program calculates the area of different geometric shapes using a switch case statement. The program provides a menu−driven interface where users can select from triangle, square, circle, rectangle, and parallelogram area calculations. Syntax switch (expression) { case constant1: // statements break; case constant2: // statements break; default: ... Read More
Classification of data refers to organizing data into various relevant categories for simplicity and ease while using them. In economics and statistics, data classification helps convert raw, unorganized information into meaningful groups based on common properties, making analysis and interpretation more efficient and accurate. Key Concepts Data classification is the systematic process of organizing data into homogeneous groups depending on their common characteristics. When data is organized based on the properties of these categories, it becomes easier to analyze, interpret, and use for research purposes. Raw data is often scattered and difficult to understand, but proper classification transforms it ... Read More
Using CSS pseudo-class selectors, namely :active, :hover, :link and :visited we can style different states of a link/anchor. For proper functionality, the order of these selectors should be − :link :visited :hover :active Syntax a:link { /* styles for unvisited links */ } a:visited { /* styles for visited links */ } a:hover { /* styles when hovering over links */ } a:active ... Read More
A number guessing game is a classic programming exercise where the computer has a secret number and the user must guess it. The program provides hints after each guess, telling whether the guess is too high or too low, until the correct number is found. Syntax do { if (guess == secretNumber) { // Correct guess - exit loop } else if (guess < secretNumber) { // Give "too low" hint ... Read More
In C programming, counting the frequency of a specific character in a string is a common task. This program prompts the user to enter a sentence and a character, then counts how many times that character appears in the sentence using strlen() function for string length determination. Syntax for(i = 0; i < strlen(string); i++) { if(string[i] == character) { count++; } } Algorithm The logic to count character frequency involves the following steps − Read ... Read More