1. What is recursion in C programming? a) A loop that iterates a fixed number of times b) A function that calls another function c) A function that calls itself d) A method to declare variables Click to View Answer and Explanation Answer: c) A function that calls itself Explanation: Recursion in C is a […]
1. What is an enum in C programming? a) A function b) A user-defined data type for integer constants c) A standard library d) A macro Click to View Answer and Explanation Answer: b) A user-defined data type for integer constants Explanation: An enum is a user-defined data type in C that consists of integral
1. What does the 'printf' function do in C? a) Reads input from the user b) Prints output to the console c) Initializes a variable d) Ends the program Click to View Answer and Explanation Answer: b) Prints output to the console Explanation: The 'printf' function is used in C to print output to the
C Standard Library Functions MCQ Read More »
1. What is the C Preprocessor? a) A set of instructions that are executed before the main function b) A component of the compiler that processes directives before compilation c) A library of standard input and output functions d) A tool for debugging C programs Click to View Answer and Explanation Answer: b) A component
C Preprocessor MCQ Read More »
1. What is the primary purpose of a 'for' loop in C? a) To execute a block of code a fixed number of times b) To execute a block of code based on a condition c) To create an infinite loop d) To iterate over arrays only Click to View Answer and Explanation Answer: a)
1. What is the primary characteristic of a 'while' loop in C? a) The loop executes at least once b) The condition is checked at the end of the loop c) The loop may not execute at all if the condition is false initially d) The loop executes an indefinite number of times Click to
C While and Do/While Loop MCQ Read More »
1. What is the purpose of the 'switch' statement in C? a) To execute a block of code based on a condition b) To iterate over a block of code multiple times c) To select one of many code blocks to execute based on a variable's value d) To terminate a loop prematurely Click to
1. What is the purpose of the 'if' statement in C? a) To iterate over a block of code b) To execute a block of code based on a condition c) To declare a variable d) To terminate a loop Click to View Answer and Explanation Answer: b) To execute a block of code based
1. What is a variable in C programming? a) A type of function b) An operator c) A storage location with a name d) A keyword in C Click to View Answer and Explanation Answer: c) A storage location with a name Explanation: A variable in C programming is a storage location that is assigned
1. What is the primary purpose of wrapper classes in Java? a) To provide a way to use primitive types as objects b) To wrap text data c) To encapsulate complex data structures d) To improve performance of collections Click to View Answer and Explanation Answer: a) To provide a way to use primitive types
Java Wrapper Classes MCQ Read More »
1. What is a module in Java? a) A function or method b) A package of classes and interfaces c) A framework for dependency management d) A self-contained unit of code and data Click to View Answer and Explanation Answer: d) A self-contained unit of code and data Explanation: In Java, a module is a
1. What are records in Java? a) Data structures to store key-value pairs b) A feature to log application data c) A special type of class that holds immutable data d) A new collection type Click to View Answer and Explanation Answer: c) A special type of class that holds immutable data Explanation: Records in
1. What is JShell in Java? a) A Java IDE b) A Java package manager c) An interactive Java REPL d) A Java compiler Click to View Answer and Explanation Answer: c) An interactive Java REPL Explanation: JShell stands for Java Shell and is an interactive Read-Evaluate-Print Loop (REPL) tool introduced in Java 9, which
1. What is inheritance in Python? a) The process of creating new classes from existing ones b) The process of creating new objects c) The process of encapsulating data d) The process of defining instance variables Click to View Answer and Explanation Answer: a) The process of creating new classes from existing ones Explanation: Inheritance
Python Inheritance MCQ Read More »
1. What is a class in Python? a) A collection of functions b) A blueprint for creating objects c) A built-in data type d) A library for mathematical operations Click to View Answer and Explanation Answer: b) A blueprint for creating objects Explanation: In Python, a class is a blueprint for creating objects with specific
Python Classes and Objects MCQ Read More »
1. What is a Python array? a) A built-in data type for storing key-value pairs b) A linear data structure for storing elements of the same data type c) A collection of unordered elements d) A list of dictionaries Click to View Answer and Explanation Answer: b) A linear data structure for storing elements of
1. Which package contains the Java Date and Time API? a) java.util b) java.time c) java.date d) java.datetime Click to View Answer and Explanation Answer: b) java.time Explanation: The Java Date and Time API is located in the java.time package, introduced in Java 8. 2. What class represents a date in the Java Date and
Java Date and Time API MCQ Read More »
1. What is the purpose of the Optional class in Java? a) To handle null values more gracefully b) To create immutable objects c) To manage thread synchronization d) To optimize memory usage Click to View Answer and Explanation Answer: a) To handle null values more gracefully Explanation: The Optional class in Java is used
Java Optional Class MCQ Read More »
1. What is a functional interface in Java? a) An interface with multiple abstract methods b) An interface with only one abstract method c) Any interface in Java d) An interface that can only be used in functional programming Click to View Answer and Explanation Answer: b) An interface with only one abstract method Explanation:
Java Functional Interfaces MCQ Questions and Answers Read More »
1. What is a lambda expression in Java? a) A variable declaration b) A method that executes asynchronously c) An anonymous function d) A loop structure Click to View Answer and Explanation Answer: c) An anonymous function Explanation: Lambda expressions in Java are a way to create anonymous functions, which are not bound to any
Java Lambda MCQ Questions and Answers Read More »
1. What is ConcurrentHashMap in Java? a) A synchronized version of HashMap b) A type of linked list c) A type of array d) A collection of sorted key-value pairs Click to View Answer and Explanation Answer: a) A synchronized version of HashMap Explanation: ConcurrentHashMap is a thread-safe variant of HashMap in Java, designed for
Java ConcurrentHashMap MCQ Questions and Answers Read More »
1. What is a TreeMap in Java? a) A dynamic array structure b) A hash table implementation c) A map based on a tree structure d) A linked list of key-value pairs Click to View Answer and Explanation Answer: c) A map based on a tree structure Explanation: TreeMap is a Map implementation that uses
Java TreeMap MCQ Questions and Answers Read More »
Hey friends! Welcome to our blog post titled Java LinkedHashMap MCQs. It’s a fun way to test your skills and learn something cool about Java programming! Java LinkedHashMap is a special type of collection that stores items in a map based on the order they were added. It’s like a mix between a hash table
Java LinkedHashMap MCQ Questions and Answers Read More »
1. What is HashMap in Java? a) A list-based collection b) A set-based collection c) A key-value pair collection d) A stack-based collection Click to View Answer and Explanation Answer: c) A key-value pair collection Explanation: HashMap is a collection in Java that stores data in key-value pairs, allowing for fast retrieval. 2. What interface
Java HashMap MCQ Questions and Answers Read More »
1. What is a TreeSet in Java? a) A dynamic array b) A type of linked list c) A collection that uses a tree for storage d) A hash table implementation Click to View Answer and Explanation Answer: c) A collection that uses a tree for storage Explanation: TreeSet in Java is a NavigableSet implementation
Java TreeSet MCQ Questions and Answers Read More »