Collections in Kotlin

In addition to the relatively rigid data structures such as arrays, Kotlin also uses other much more flexible data constructs - the so-called collections. Kotlin Collections are generic data structures used to store and manage a group of objects of the same type. They offer a variety of methods and functions to access, manipulate, add or remove the stored items. Collections are not a specialty or invention of Kotlin,

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Arrays in Kotlin

Similar to other programming languages, arrays in Kotlin provide the ability to store and manage an ordered collection of elements of the same data type, such as a list of numbers, characters, or objects. They enable structured and organized storage of data as well as efficient access to individual elements via an index. Arrays are used in many use cases, from simple lists to tables to more complex multidimensional ones

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Areas in Kotlin

In Kotlin, Ranges are used to represent a continuous sequence of values. Ranges can be used for both numbers and characters. They are useful in various situations, especially when combined with loops to make the code more readable and shorter. Initializing an area There are various options available to initialize areas in Kotlin: .. operator creates an area with the values

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Loops in Kotlin

Kotlin supports various types of loops that allow developers to execute a group of statements multiple times. For Loop The For Loop in Kotlin loops through all the elements of a collection. The formal syntax of For loop in Kotlin is as follows. Variable is the name of the variable used for each element in the Sequence being iterated over. Within the loop body all statements can be executed for each

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Conditional statements

In programming, conditional statements are constructs that make it possible to control a program flow based on conditions. The condition can, for example, refer to a specific variable or the state of a program. If the condition is met, the code within the conditional statement is executed. Otherwise the code is skipped or an alternative code block is executed. There are two types of conditional statements in Kotlin: if statements and

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Bitwise operators in Kotlin

Bitwise operators are useful for manipulating bit patterns in programming. They offer a quick and efficient way to perform complex operations (e.g. decryption of data, calculation of hashes, etc.) that require manipulating individual bits in a binary number. It is important to understand what the binary representation of different numbers looks like. For example, the binary representation of the number 12 is “0b1100” and the

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Logical operators

There are three logical operators in Kotlin: && (AND), || (OR) and ! (NOT), which are used to combine Boolean expressions (true or false) and create complex conditions. Below are examples of using these operators in Kotlin: && AND operator && AND operator returns true if both operands are true and returns false if at least one of the operands is false. For example: In this

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Comparison operators

In Kotlin, there are various comparison operators that can be used to compare values ​​and produce Boolean results (“true” or “false”). Below are some of the most important comparison operators in Kotlin. == Equality operator: This operator is used to determine whether two values ​​are equal. The example above checks whether the value of variable a is equal to the value of b. Since they are not the same,

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Assignment operators

In Kotlin, there are different types of assignment operators that can be used to assign a value to a variable or update the value of a variable. Here are some examples of assignment operators in Kotlin: = Assignment operator: This operator is used to assign a value to a variable. For example: += addition assignment operator is used in Kotlin to update the value of a variable by replacing the current value with a

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Arithmetic operators

Introduction In Kotlin, like many other programming languages, there is the concept of operators and operands. An operand is typically a value or variable to which an operator is applied to perform a specific operation. In the example below, the numbers 100 and 50 are operands and the plus sign + is an operator. Operand Operator Operand 10 + 5 There are different types of operators:

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