Brototype Interview Questions and Answers

30 minutes array questions

Q1. What is a calss
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Classes define the properties and behaviors of objects.

• Objects are instances of classes.

• Classes can inherit properties and behaviors from other classes.

• Example: Class 'Car' may have properties like 'color' and 'model', and behaviors like 'drive' and 'stop'.
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Q2. What is inheritance in java
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Inheritance in Java allows a class to inherit properties and behaviors from another class.
• Inheritance enables code reusability and promotes the concept of hierarchical classification.

• Subclasses can access the methods and fields of their superclass.

• Example: class Dog extends Animal, where Dog inherits properties and behaviors from Animal.
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Q3. What is multithreadind
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Multithreading is a programming concept where multiple threads within a process execute independently to improve performance.
• Multithreading allows for concurrent execution of tasks within a single process

• Threads share the same memory space, allowing for efficient communication and data sharing

• Examples include running multiple tasks simultaneously in a web server or processing multiple data streams in a video editing so...read more
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Q1. Tell me about your self
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Q2. Writing about a topic
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Array , pattern ,oops concepts

Q1. Professional English communication skill
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Tough round . They won't let you clear this round until you answer the question in around 15-20 minutes

Toughest round. Be prepared

Q1. Oops and Java basics. can be cleared relatively easy
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Q2. What is oops,java
Ans. 
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating reusable code by organizing data into objects and defining their behavior through methods.

• Java is a popular programming language that supports OOPs principles such as encapsulation, inheritance, polymorphism, and abstraction.

• Example: In Java, a class 'Car' can have attri...read more
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Q1. Oops based question on java
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Java OOP concepts include encapsulation, inheritance, polymorphism, and abstraction, essential for building robust applications.
• Encapsulation: Bundling data and methods. Example: Using private variables with public getters/setters.

• Inheritance: Deriving new classes from existing ones. Example: Class 'Dog' inherits from class 'Animal'.

• Polymorphism: Methods behaving differently based on the object. Example: Method 'draw()...read more
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Array and pattern questions based on c

1 Round contains 30 Minutes,
candidates should complete a pattern problem given to them in given time,
the logic of the program should be written in a paper

programming language - c

sample questions like print a traingle, inseverse traingle etc..

2 Question is an array question similar to first question only 30 minutes to complete

sample question - delete the multiples of 5 from an array , print the total number of unique elements in the array, print all the prime numbers from the array

Q1. 2nd Round is Object oriented programming round, where the questions will be based on Java programming languauge
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Q2. Candidates should learn the oops like classes, object, polymorphism, encapsulation, inheritance and abstraction etc...
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Q3. Explain the process of execption handling
Ans. 
Exception handling is the process of handling errors and unexpected events in a program.
• Exceptions are thrown when an error occurs in the program.

• The try-catch block is used to handle exceptions.

• The catch block catches the exception and handles it appropriately.

• Finally block is used to execute code regardless of whether an exception was thrown or not.

• Exception handling helps in making the program more robust and preven...read more
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Q4. Learn of about the keywords in java like this, super etc..
Ans. 
Java keywords like 'this' and 'super' are essential for object-oriented programming, enabling access to class members and inheritance.
• 'this' refers to the current object instance, allowing access to instance variables and methods.

• Example: 'this.variableName' differentiates between instance variables and parameters.

• 'super' is used to access superclass methods and constructors, facilitating inheritance.

• Example: 'super()'...read more
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Q5. How multiple inheritance is made possible in java
Ans. 
Java does not support multiple inheritance, but it can be achieved through interfaces.
• Java does not allow multiple inheritance of classes due to the diamond problem.

• However, multiple inheritance can be achieved through interfaces.

• A class can implement multiple interfaces, which can have their own default implementations.

• Example: class A implements Interface1, Interface2 { }
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