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Use this code for Hello World Program  #Prints a Message saying "Hello World!" print("Hello World!") Output : Hello World! 

C# Comparison Operators Comparison operators in C# are used to compare values and return a boolean result (true or false). They are essential for making decisions and controlling the flow of your program. Here's a table of the common comparison operators: | Operator | Description | Example | |---|---|---| | == | Equal to | if (x == y) | | != | Not equal to | if (x != y) | | > | Greater than | if (x > y) | | < | Less than | if (x < y) | | >= | Greater than or equal to | if (x >= y) | | <= | Less than or equal to | if (x <= y) | Example: int x = 10; int y = 5; // Using comparison operators bool isEqual = x == y; // False bool isGreater = x > y; // True bool isLessOrEqual = x <= y; // False // Using comparison operators in an if statement if (x > y) {     Console.WriteLine("x is greater than y"); } else {     Console.WriteLine("x is not greater than y"); } Important Notes:  * Null Comparison: When comparing reference types (like str...

Python: A Versatile Programming Language Python is a powerful, versatile, and widely-used programming language known for its readability and simplicity. It's often referred to as a "beginner-friendly" language, but it's also used by professionals for complex applications. Key Features of Python:  * Readability: Python's syntax is designed to be clear and concise, making it easy to learn and understand.  * Versatility: It can be used for a wide range of applications, including:    * Web development (Django, Flask)    * Data science and machine learning (NumPy, Pandas, Scikit-learn)    * Automation (Ansible, Selenium)    * Game development (Pygame)    * System administration    * And much more!  * Large Community: A large and active community provides extensive support, libraries, and frameworks.  * Cross-Platform Compatibility: Python code can run on various operating systems like Windows, macOS, and Linux. G...

C# Logical Operators Logical operators in C# are used to combine boolean expressions and produce a single boolean result. They are essential for making complex decisions within your code. Types of Logical Operators:  * Logical AND (&&)    * Returns true if both operands are true.    * Returns false otherwise.    bool isSunny = true; bool isWarm = true; if (isSunny && isWarm) {     Console.WriteLine("It's a perfect day for a picnic!"); }  * Logical OR (||)    * Returns true if at least one operand is true.    * Returns false if both operands are false.    bool hasMoney = false; bool hasCreditCard = true; if (hasMoney || hasCreditCard) {     Console.WriteLine("You can make a purchase."); }  * Logical NOT (!)    * Reverses the logical state of its operand.    * Returns true if the operand is false.    * Returns false if the operand is true.   ...

  Operators are used to perform operations on variables and values. Arithmetic Operators +     Addition                Adds together two values                    a+b -      Substraction         Substracts one value from another        a-b *      Multiplication        Multiplies two values                            a*b /      Division                Divides one value by another                a/b %    Modulus                Returns the division number                 a%b ++  Increment           ...

C# Increment and Decrement Operators In C#, the increment (++) and decrement (--) operators are used to increase or decrease the value of a numeric variable by 1. They can be used in both prefix and postfix modes. Prefix Mode:  * Increment: ++x    * Increments the value of x by 1, then returns the new value.  * Decrement: --x    * Decrements the value of x by 1, then returns the new value. Postfix Mode:  * Increment: x++    * Returns the current value of x, then increments it by 1.  * Decrement: x--    * Returns the current value of x, then decrements it by 1. Example: int x = 5; // Prefix increment int y = ++x; // x becomes 6, y becomes 6 // Postfix increment int z = x++; // z becomes 6, x becomes 7 // Prefix decrement int a = --x; // x becomes 6, a becomes 6 // Postfix decrement int b = x--; // b becomes 6, x becomes 5 Console.WriteLine("x: " + x); Console.WriteLine("y: " + y); Console.WriteLine("z: " + z); Console.WriteLine(...

  A data type specifies the size and type of variable values. It is prominent to use the correct data type for the corresponding variable; to avoid errors, to save time and memory, besides it will also make your code more maintainable and readable. The most popular data types are: Data Type Size Description int 4 bytes Stores whole numbers from  -2,147,483,648 to 2,147,483,647 long 8 bytes Stores whole numbers  from -9,223,372,036,854,775,808  to 9,223,372,036,854,775,807 float 4 bytes Stores fractional numbers.  Sufficient for storing 6 to 7 decimal digits. double 8 bytes Stores fractional numbers. Sufficient for storing 15 decimal digits. bool 1 bit Stores true or false values char 2 bytes Stores a single character/letter, surrounded by single quotes string 2 bytes per character Stores a sequence of characters,  surrounded by double quotes

A Brief History of Hacking While the term "hacking" often carries negative connotations today, its origins were far more innocent. Early Hacking:  * Phone Phreaking: In the 1960s and 70s, individuals known as "phone phreaks" exploited vulnerabilities in the telephone system to make free calls.  * Tech Enthusiasts: Early computer hackers were often curious individuals who enjoyed exploring and modifying systems. They were driven by a desire to understand how things worked and to push the boundaries of technology.

 OSPF (Open Shortest Path First) is a routing protocol used in computer networking to exchange routing information between devices on a network. It is a link-state protocol that allows devices to dynamically calculate the best path for forwarding packets between networks. Here's a brief overview of OSPF: **Key Features:** * Dynamic routing: OSPF adjusts routing tables in real-time based on network changes. * Link-state: Each device maintains a map of the network topology and shares this information with its neighbors. * Shortest path first: OSPF selects the best path for forwarding packets based on the shortest path algorithm. **How OSPF Works:** 1. Each device on the network runs OSPF and maintains a routing table. 2. Devices exchange link-state advertisements (LSAs) with their neighbors, which contain information about the network topology. 3. Each device uses this information to calculate the shortest path to each network. 4. The device with the shortest path to a network become...

Control Statements Introduction to Control Statements ➡ A control statement is responsible for deciding which statement to execute (If Statement) ➡It also decides the number of times a statement has to be executed (Loop) ➡SELECTION: Checks condition of an expression and executes only a particular code skipping the others ➡ITERATION: Checks condition of an expression and executes a particular code repeatedly till the expression becomes false

i mport java.util.Calendar; /**   * Gregorian-Hijri Dates Converter   *   *   * This Code is used to convert Gregorian dates to Hijri Dates   *   *   */   public class DateHigri {                    static double gmod( double n, double   m) {          return ((n % m) + m) % m;      }        static double [] kuwaiticalendar( boolean adjust) {          Calendar today = Calendar.getInstance();          int adj= 0 ;          if (adjust){              adj= 0 ;          } else {              adj= 1 ;  ...