Kotlin Programming Basics Quiz

False (B)

class

<p>addition</p> Signup and view all the answers

<ul> <li>= Addition operator &amp;&amp; = Logical AND || = Logical OR</li> </ul> <ul> <li>= Subtraction operator</li> </ul> Signup and view all the answers

<p>= (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>modifier keywords</p> Signup and view all the answers

<p>fun (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>to execute code</p> Signup and view all the answers

<p>Java</p> Signup and view all the answers

<p>Variables declared with var can be modified. (C)</p> Signup and view all the answers

<p>var = Mutable variable val = Immutable variable fun = Function declaration println = Output function</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>2011</p> Signup and view all the answers

<p>arrayOf() (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>=== (D)</p> Signup and view all the answers

<p>size</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>It checks for value equality.</p> Signup and view all the answers

<p>arrayOfNulls()</p> Signup and view all the answers

<p>toFloat()</p> Signup and view all the answers

<p>arrayOf() = Creates an array with specified values arrayOfNulls() = Creates an array with null values size = Gets the number of elements in an array in = Checks if an element exists in an array</p> Signup and view all the answers

<p>Double = toInt() Float = toByte() Int = toLong() Char = toString()</p> Signup and view all the answers

<p>true (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>true, false</p> Signup and view all the answers

<p>My name is John Doe (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>To specify a block of code that executes if the condition is false.</p> Signup and view all the answers

<p>string templates</p> Signup and view all the answers

<p>if = Executes a block if the condition is true else = Executes a block if the previous condition is false else if = Tests a new condition if the previous one is false when = Specifies many alternative blocks of code</p> Signup and view all the answers

<p>Using toString() method (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Use the length property.</p> Signup and view all the answers

<p>compareTo</p> Signup and view all the answers

<p>HELLO WORLD (B)</p> Signup and view all the answers

<p>toUpperCase() = Converts a string to uppercase toLowerCase() = Converts a string to lowercase indexOf() = Finds the position of a substring String.format() = Formats a string using specified format</p> Signup and view all the answers

<ul> <li></li> </ul> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>To create an array (D)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Using the in operator.</p> Signup and view all the answers

<p>size</p> Signup and view all the answers

<p>arrayOf() = Create an array println() = Output a value to the console size = Determine the number of elements in an array in = Check existence in an array</p> Signup and view all the answers

<p>Volvo (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>exists</p> Signup and view all the answers

A key word used to declare a function in Kotlin. Functions are blocks of code designed to perform certain tasks.

A function in Kotlin that is the entry point for program execution. Code inside this function will be run first.

A container used to store data values in Kotlin. It's a name you give to a particular value.

A keyword used to declare a variable that can be changed later in the program.

A keyword used to declare a variable that cannot be changed after its initial assignment.

The act of giving a variable a specific value.

The data type that represents whole numbers without decimal points.

A function in Kotlin that prints a message or value to the console.

A sequence of characters, like letters, numbers, and symbols.

A built-in function in Kotlin used to convert a number to a string.

A method in Kotlin used to format string output, similar to printf in C.

A special way of combining strings and variables in Kotlin, using the '$' symbol.

A property of a String object in Kotlin that returns the number of characters in the string.

A method in Kotlin that converts all characters in a string to uppercase.

A method in Kotlin that converts all characters in a string to lowercase.

A method in Kotlin that compares two strings and returns 0 if they are equal.

In Kotlin, arrays are generic classes, meaning they have a type parameter, like "Array<String>" for an array of strings.

The arrayOf() function is used to create arrays in Kotlin. You can place the values inside the function, separated by commas, like arrayOf("Volvo", "BMW", "Ford") to create an array of car brands.

Access an array element by its index within square brackets, like cars[0] to access the first element in the cars array. Indexing starts from 0.

The size property of an array tells you how many elements it contains. Use it like cars.size to get the number of elements in the cars array.

The in operator checks if an element exists within an array. Use it like "Volvo" in cars to check if "Volvo" is present in the cars array.

Use a for loop to iterate through each element of an array. This allows you to process each element individually.

Arrays are useful for storing multiple values of the same type in a single variable, making it easier to manage and access them.

A logical operator in Kotlin that performs a logical OR operation without short-circuiting. It evaluates both operands even if the first operand is already true.

In Kotlin, these operators are used for comparing the values of two variables or expressions. They return true if the values are equal and false otherwise.

These operators in Kotlin check for referential equality, meaning they determine if two variables point to the same object in memory.

In Kotlin, all number types can be converted into other number types using member functions, allowing for flexibility in data manipulation.

In Kotlin, characters cannot be directly compared with numbers. They are treated as distinct entities, requiring specific methods for comparison or conversion.

Every character in Kotlin has a specific set of functions associated with it. These functions allow you to perform various actions on characters, like checking their case or converting them to uppercase.

In Kotlin, Booleans are represented by the literals true and false. Unlike some languages, Kotlin does not have the concept of truthy or falsy values.

In Kotlin, the use of truthy and falsy values is not supported. It means that for constructs requiring a Boolean type, only Boolean literals, variables, or expressions that resolve to true or false are accepted.

A variable's data type is automatically inferred by the compiler when a literal value is assigned. For example, if you assign the number 10 to a variable, Kotlin will automatically recognize it as an integer.

Reserved keywords that have specific meanings in Kotlin and cannot be used as identifiers (variable, function, class names, etc.).

Keywords that act as reserved words only in specific contexts, allowing them to be used as regular identifiers in other cases.

Keywords that act as reserved only in modifier lists of declarations (like 'final,' 'open', 'abstract').

Symbols that perform operations on data, like addition (+), subtraction (-), multiplication (*), division (/), and modulo (%).

The equal sign (=) used to assign a value to a variable.

Operators that combine an arithmetic operation with assignment, like adding and assigning (+=), subtracting and assigning (-=), etc.

Logical operators used for constructing complex Boolean expressions, including 'and' (&&), 'or' (||), and 'not' (!).

Joining two or more strings together to create a single string

A method of incorporating variables and expressions directly within a string, simplifying string formatting

A code block executed only if a certain condition evaluates to true.

A code block executed if the condition in the corresponding 'if' statement is false.

A code block that provides an alternate condition to check if the previous 'if' and 'else if' conditions were false.