CameronTec Java Software Engineer Interview Questions and Answers

Q1. Spring cloud gateway
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Q2. JWT Token structure and details
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Q3. Java 11 features
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Q4. Stream related problems
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Q1. How are you today
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Q2. What's the weather today
Ans. 
The weather today is sunny with a few clouds and a high of 75 degrees.
• Sunny weather with some clouds

• High temperature of 75 degrees

• Possibility of rain later in the day
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Q3. Why do you want to join
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I am passionate about creating innovative software solutions and believe your company aligns with my values and goals.
• Passionate about software development

• Believe company aligns with values and goals
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Q4. What values do you have
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I value continuous learning, collaboration, innovation, and integrity in my work as a software developer.
• Continuous learning: I believe in staying updated with the latest technologies and trends in the industry.

• Collaboration: I value working in a team and sharing knowledge and ideas with my colleagues.

• Innovation: I strive to find creative solutions to problems and improve processes.

• Integrity: I believe in honesty, tran...read more
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Q5. What do you like more, array or list
Ans. 
I prefer arrays for their fixed size and faster access, but lists for their flexibility and ease of manipulation.
• Arrays are preferred for their fixed size and faster access time, especially when random access is required.

• Lists are more flexible and easier to manipulate, especially when elements need to be added or removed frequently.

• Arrays are typically used when the size of the collection is known beforehand, while li...read more
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Q1. Functional interface
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Q2. Find if array of numbers, which are prime, using streams
Ans. 
Use streams to find prime numbers in an array
• Use Java streams to filter out non-prime numbers from the array

• Check if a number is prime by dividing it by all numbers less than its square root

• Create a method to check if a number is prime
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. DS & Algo topics
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Q2. GoLang concepts
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Q1. More on Server Architectural Questions
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Q2. Questions related to database & all
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Q1. Why are you switching the job
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Q2. What is your goal in next 5years
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Q1. Why do you want to switch
Ans. 
I want to switch to explore new technologies and challenges in a different industry.
• Interested in learning new skills and technologies

• Seeking new challenges and opportunities for growth

• Want to explore different industry perspectives
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Q2. Salry expectations
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Q1. Question on oop concepts
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Q2. Coding questions
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Q1. Ask to write code for equal and hashcode in notepad
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Q2. Type of Collections and its internal working
Ans. 
Java collections are data structures that store and manipulate groups of objects.
• Types of collections include List, Set, Map, Queue, etc.

• Internal workings involve data structures like arrays, linked lists, hash tables, etc.

• Collections framework provides interfaces and classes for working with collections.
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Q3. Count number of occurrence of string from Array
Ans. 
Count occurrences of a specific string in an array of strings.
• Iterate through the array and use a HashMap to store the count of each string.

• Use the string as key and increment the count each time it is encountered.

• Return the count of the specific string at the end.
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Q4. Write a code using stream
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Using stream to filter a list of strings
• Use the filter method to apply a predicate to each element in the stream

• Convert the stream back to a list using the collect method
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Q1. What is object oriented programming
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.

• Example: In a banking application, a 'Customer' class may have attributes like name and account balance, and methods li
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Q2. React vs angular
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React is a lightweight library for building user interfaces, while Angular is a full-fledged framework for web development.
• React is more flexible and allows for easier integration with other libraries and frameworks.

• Angular provides more out-of-the-box features and a more opinionated structure.

• React uses a virtual DOM for better performance, while Angular uses two-way data binding for easier data manipulation.

• React is ...read more
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