Barclays Software Developer Interview Questions, Process, and Tips

Mcq+coding which are medium level questions

Q1. Multiple inheritance allowed in java?
Ans. 
No, multiple inheritance is not allowed in Java.
• Java does not support multiple inheritance for classes to avoid the diamond problem.

• However, multiple inheritance is allowed for interfaces in Java.

• Example: class A extends B, C is not allowed, but interface X extends Y, Z is allowed.
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Q2. Diff btw static and final
Ans. 
Static is used to define class-level variables and methods, while final is used to define constants and prevent inheritance or modification.
• Static variables and methods belong to the class itself, while final variables cannot be changed once initialized.

• Static members can be accessed without creating an instance of the class, while final members must be accessed through an instance.

• Static variables are shared among all...read more
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Q3. What is data encapsulation?
Ans. 
Data encapsulation is the concept of bundling data and methods that operate on the data into a single unit, known as a class.
• Encapsulation hides the internal state of an object and only exposes the necessary functionalities through methods.

• It helps in achieving data abstraction and information hiding.

• Example: A class 'Car' encapsulates data like speed, color, and methods like accelerate() and brake().
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Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. What are company core values
Ans. 
Company core values are the fundamental beliefs that guide the behavior and decisions of employees.
• Integrity - acting with honesty and transparency in all dealings

• Innovation - constantly seeking new and better ways to solve problems

• Customer focus - prioritizing the needs and satisfaction of customers

• Teamwork - collaborating effectively with colleagues to achieve common goals
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It was easy they were asked cognitive,verble,reasoning questios and 2 coding question,and 1 sql query it was online

Q1. Discussion on projects then asked some question on oop,sql query
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Q2. Asked question on dsa it was easy like reverse linked list and how to detect loop in linked list and how to delete it
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Q1. Discussion on projects,and give situational question
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Q2. Then ask about family background
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Great round easy coding test fun

Q1. Why do you want to join
Ans. 
I am passionate about creating innovative software solutions and believe this company offers a great platform for growth and learning.
• Passionate about creating innovative software solutions

• Believe company offers great platform for growth and learning
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Aptitude test coducted online on hacker rank

Q1. Expalin the project
Ans. 
Developed a web-based project management tool for tracking tasks and deadlines.
• Used HTML, CSS, and JavaScript for front-end development

• Implemented backend functionality using Node.js and MongoDB

• Incorporated user authentication and authorization features

• Utilized RESTful APIs for communication between front-end and back-end
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