AD Computer & Software Developer Java Developer Interview Questions and Answers

Q1. Min stack write code with full operation
Ans. 
A min stack is a stack data structure that supports the usual push and pop operations, along with an additional operation to retrieve the minimum element in constant time.
• Create a stack to store the elements and another stack to store the minimum values encountered so far.

• When pushing an element, check if it is smaller than the current minimum. If so, push it onto the minimum stack.

• When popping an element, check if it ...read more
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Q2. Graph and sql ,concept problem
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Q1. Merge Sort based tricky ques
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Q2. Island problem leetcode
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Q1. How can a Spring Boot project be created to develop an API that returns specified data?
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Q2. What is the code to print a right-angled triangle of numbers based on a given input number?
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Q1. Collections framework, Explain why you chose a particular collection instead of other with example scenario based
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Q2. Explain your project
Ans. 
Developed a web application for online shopping with features like user authentication, product search, and order management.
• Implemented user authentication using Spring Security

• Utilized Hibernate for database operations

• Designed front-end using AngularJS for dynamic user interface
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Q1. Goals for the future
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To become a senior Java developer and contribute to innovative projects in a collaborative team environment.
• Continue learning new technologies and best practices in Java development

• Work on challenging projects to enhance problem-solving skills

• Collaborate with team members to share knowledge and improve code quality
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Q2. How do you think you can impact our company
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I believe my strong Java skills and problem-solving abilities can positively impact the company by improving efficiency and developing innovative solutions.
• I have experience in developing efficient and scalable Java applications, which can help streamline processes within the company.

• I am skilled in identifying and solving complex technical issues, which can contribute to the overall success of projects.

• I am proactive ...read more
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Q1. Try, catch, finally...
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Q2. HTTP families (400,200,500)
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Questions on permuation and combination

Q1. Java core and advanced concepts
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Q2. Springboot annotations, spring mvc, spring security
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Q1. Friendly questions
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Java Coding Questions based on ArrayList, HashMap, etc.

Count distinct elements in given String.

Q1. Current Project architecture.
Ans. 
Our current project architecture follows a microservices design pattern with separate services for different functionalities.
• Microservices architecture with separate services for different functionalities

• Use of RESTful APIs for communication between services

• Containerization using Docker for easy deployment and scalability

• Implementation of service discovery and load balancing with tools like Kubernetes

• Use of message bro
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Q2. My role in project
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My role in the project was to develop and maintain Java applications to meet the project requirements.
• Developing Java applications based on project requirements

• Maintaining and updating existing Java code

• Collaborating with team members to ensure project success
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Q1. When will you start a company
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Q2. How Many location in company
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Q3. Who is the CEO of Zoho
Ans. 
Sir.Sridhar Vembu is the founder and CEO
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Q4. What is the high salary of Zoho
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Q5. Is Zoho a foreign company?
Ans. 
Yes, Zoho is a foreign company based in India.
• Zoho is headquartered in Chennai, India.

• It was founded by Sridhar Vembu in 1996.

• Zoho has offices in multiple countries including the United States, China, Japan, and Singapore.
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Array string sorting algorithm