Freaks City

Previously we learned basic syntax without user interaction. Now the Scanner class lets us capture keyboard input and process it—enabling real interactive programs. Basic Syntax Scanner inputReader = new Scanner(System.in); We use next() and nextLine() to read strings. Before reading, we can check for data with hasNext() or hasNextLine(). Exa ...

Python supports standard arithmetic operators alongside specialized built-in functions. The divmod() function simultaneously calculates quotient and remainder, returning them as a tuple. Literal bases include hexadecimal prefixes (0x). Expression evaluation relies on eval(), which interprets a string as executable Python code and returns the co ...

Conditional Statements An if statement evaluates a boolean predicate and executes its body only when the predicate resolves to True. limit = 20 current = 15 if current < limit: print("Within bounds") When a binary decision is required, the else keyword defines the alternative path. temperature = 4 if temperature <= 0: ...

The switch statement in C provides multi-way branching based on the value of an integral expression. The general syntax follows this structure: switch (expression) { case constant_1: statements; break; case constant_2: statements; break; default: statements; } The controlling expression must ...

Empty Statement An empty statement consists solely of a semicolon (;). It is typically used when the loop’s condition itself performs all necessary work: while (std::cin >> input && input != target) { ; // Reads from input until a specific value is encountered } Switch Statement Case Labels Always include a break after each ...

Arithmetic Opreators Basic mathematical operations in JavaScript include addition (+), subtraction (-), multiplication (*), division (/), and modulus (%). console.log(5 + 3 * 2 / 1); // 11 let value = 15; console.log(value % 4); // 3 (remainder) console.log('text' - 5); // NaN (invalid operation) Assignment Operators Used to assign values to v ...

Variables and Constants Variables can be classified as global or local, each with distinct scopes and lifetimes. Scope Local Variable: Accessible only within the block where it is declared (e.g., inside {}). Global Variable: Accessible throughout the entire program. To use across files, declare with extern (e.g., extern int value;). Lifetime ...

Numeric Types Kotlin supports Java 8's underscore notation for numeric literals to improve readability: val million = 1_000_000 val creditCardNumber = 1234_5678_9012_3456L Type Suffixes and Explicit Type Declaration To specify numeric types explicitly, use type annotations or suffixes: val floatValue: Float = 1 // Using type annotation v ...

Control structures dictate the sequence of statement execution within a program, enabling the construction of small logical units that perform specific functions. Sequential Structure: Statements execute line by line from top to bottom, without any conditional checks or jumps. Selection Structure: Executes a specific code block based on a give ...

The 'if' StatementBranching logic is fundamental to controlling program execution flow. In C, the if statement allows code to execute specific blocks based on whether a condition evaluates to true or false. C interprets any non-zero value as true, while zero represents false.Single and Multi-Branch StructuresA basic branch involves one conditio ...