Infosys Project Engineer Interview Questions and Answers

Q1. Explain OOPs concept in JAVA
Ans. 
OOPs concept in JAVA refers to Object-Oriented Programming principles like encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hidin...read more
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Q2. Explain Memory management in JAVA
Ans. 
Memory management in JAVA involves allocation, usage, and deallocation of memory for objects and variables.
• Java uses automatic memory management through garbage collection

• Memory is allocated on the heap for objects and on the stack for local variables

• Java Virtual Machine (JVM) manages memory allocation and deallocation

• Memory leaks can occur if objects are not properly dereferenced
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Q3. Explain Reflection in JAVA
Ans. 
Reflection in Java allows programs to inspect or modify their own structure at runtime.
• Reflection allows access to class information, fields, methods, and constructors at runtime.

• It is commonly used in frameworks like Spring and Hibernate for dependency injection and ORM.

• Example: Using reflection to dynamically load classes or invoke methods based on user input.
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Q1. What are the technologies you worked on
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Q2. Explain how you used a specific technology and it helped your organization
Ans. 
We implemented a new project management software which improved communication and task tracking.
• Implemented project management software

• Improved communication and task tracking

• Reduced errors and delays in project completion

• Increased efficiency and productivity

• Example: Used Asana to manage tasks and deadlines for a construction project
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Q1. Please can you explain how you implemented a solution using the tool
Ans. 
I implemented a solution using the tool by first analyzing the problem and then designing a plan of action.
• Identified the problem and its requirements

• Researched and selected the appropriate tool

• Designed a plan of action and implemented the solution

• Tested and evaluated the solution for effectiveness

• Documented the process and provided training to users
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Q2. Based on the feedback you can ask further questions
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It will be a bit hard. But it contains some basic algorithm questions pseudo solving nd problem solving

Q1. 1. Introduction abt ourselves.? 2.Basic abt any computer language 3. About oops concept 4.why should we hire you?
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It will be a bit hard. But it contains some basic algorithm questions pseudo solving nd problem solving

Q1. 1. Introduction abt ourselves.? 2.Basic abt any computer language 3. About oops concept 4.why should we hire you?
Add your answer