G R Infraprojects Lead Software Engineer Interview Questions and Answers

Q1. Java opps concept
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Q2. App cycle status
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Q1. Java oops concepts
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Q2. Integration testing
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Q1. Concurrency problem
Ans. 
Concurrency problem occurs when multiple threads access shared resources simultaneously, leading to unexpected behavior.
• Use synchronization mechanisms like locks, semaphores, or monitors to control access to shared resources.

• Avoid race conditions by ensuring that critical sections of code are executed atomically.

• Consider using thread-safe data structures or immutable objects to minimize the risk of concurrency issues.
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Noramal basic algorithm and ,fetch api

Q1. React alll basic question,redux,class component,functional component
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Easy not much hard. Basic questions

Dsa is must, logical questions are asked

30 mins 20 questions

Problem Statement : it would provide you the detailed description

Example : It would provide example of the program code

Functional Description: It would provide functional details of the code to be written

Returns: It would provide details of expected output of the code (what code should return after execution)

While passing the first stage of interviews is considered difficult, it is often harder to complete a data entry test simply because of the increased need to work under pressure. Data entry tests often cause the most experienced workers to make unnecessary errors that aren’t really representative of how they work daily. However, with some simple preparation, you can complete your pre-employment tests with confidence. Here is how to prepare for your upcoming data entry test.

Q1. What is difference between the abstract class and interface
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to provide a common base for multiple classes, while interfaces define a contract that implementing
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Q1. What design pattern used in angular
Ans. 
The design pattern commonly used in Angular is the Observer pattern.
• The Observer pattern is used to establish a one-to-many dependency between objects.

• In Angular, Observables are used to implement the Observer pattern for handling asynchronous data streams.

• Components in Angular often use Observables to subscribe to changes and react accordingly.
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Test was hard, needs to prepared very well