ICT

Keywords

Reserved words in programming that cannot be used as identifiers and are always lowercase.

Identifiers

User-defined names for methods, variables, constants, and classes that start with a letter, underscore, or dollar sign.

Data Types

Two sets in Java, including primitive and reference (non-primitive) types.

String

A reference data type in Java that stores a sequence of characters.

Variables

Identifiers whose values can be changed, defined with the syntax ` ;`.

Constants

Identifiers whose values never change once declared, defined with the syntax `final = ;`.

Casting

The process of assigning a value of one type to a variable of another type.

Operators

Symbols that perform logical or mathematical functions on operands such as variables, constants, and objects.

Unary Operators

Operators that require only one operand and change its value without using the assignment operator.

Binary Operators

Operators that require two operands, such as addition (+) and multiplication (*).

Arithmetic Operators

Operators for performing basic mathematical operations, including +, -, *, /, and %.

Shortcut/Assignment Operators

Operators that combine assignment with arithmetic operations, such as += and -=.

Comparison/Relational Operators

Binary operators that evaluate the relationship between two operands, returning true or false.

Conditional/Logical Operators

Operators that return a Boolean value based on logical conditions.

Truth Tables

Tables that demonstrate the result of logical operations.

Precedence

The order in which operators are executed in an expression, following the MDAS rule.

Associativity

The order in which operators of the same precedence are performed, either left to right or right to left.