Qburst Interview Questions, Process, and Tips

Q1. Why stream api in Java?
Ans. 
Stream API in Java provides a functional approach to processing collections of objects.
• Allows for concise and readable code by using functional programming concepts like map, filter, and reduce.

• Enables parallel processing of data, improving performance for large datasets.

• Supports lazy evaluation, allowing for efficient use of resources.

• Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); names.stream().filte...read more
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Q2. Java code to filter even numbers from a list and store the square of those in another list
Ans. 
Java code to filter even numbers from a list and store the square of those in another list
• Create two ArrayLists to store the original list and the squared even numbers list

• Iterate through the original list and check if each number is even

• If the number is even, square it and add it to the squared even numbers list
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Q3. Java code to check two strings are anagram
Ans. 
Java code to check if two strings are anagrams
• Create a function that takes in two strings as parameters

• Convert both strings to char arrays and sort them

• Compare the sorted char arrays to check if they are equal
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Q4. Need of functional interfaces in java
Ans. 
Functional interfaces in Java are needed to enable the use of lambda expressions, which provide a concise way to implement single abstract method interfaces.
• Functional interfaces have exactly one abstract method and can have multiple default or static methods.

• They are used to enable the use of lambda expressions, which provide a concise way to implement the single abstract method.

• Examples of functional interfaces in Ja...read more
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Q5. How threads can be created in java
Ans. 
Threads in Java can be created by extending the Thread class or implementing the Runnable interface.
• Extend the Thread class and override the run() method

• Implement the Runnable interface and implement the run() method

• Use the Executor framework for managing threads
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Coding round first round

Q1. String concepts
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Q2. Array methods in js
Ans. 
Array methods in JavaScript are built-in functions that allow manipulation and traversal of arrays.
• Some common array methods include: map(), filter(), reduce(), forEach(), and find().

• map() - creates a new array by applying a function to each element in the original array.

• filter() - creates a new array with elements that pass a certain condition.

• reduce() - applies a function against an accumulator and each element in th...read more
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Q1. Basic testing knowledge
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Q1. Application testing questions
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Q1. Salary and work
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Q1. Asked some logical questions
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Q2. Basic C programming questions.
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Q3. Asked about projects
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Q4. Difference between microcontroller and microprocessor
Ans. 
Microcontrollers are integrated circuits designed for specific tasks with built-in memory and peripherals, while microprocessors are general-purpose CPUs without built-in memory or peripherals.
• Microcontrollers are typically used in embedded systems for specific tasks like controlling a microwave oven or a washing machine.

• Microprocessors are used in general-purpose computing devices like laptops, desktops, and servers.

• M...read more
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