HCLTech Software Engineer Interview Questions, Process, and Tips

Shared assessment link for technical coding round.

Q1. 1) Java features 2) Access Modifiers 3) Arraylist 4) explain private and Default access modifiers 5) What is collection And explain Arraylist. 6) what is exception handling what it use in java. 7)Throw and...read more
Ans. 
Java features, access modifiers, ArrayList, exception handling, and throw/throws in Java.
• Java features include platform independence, object-oriented programming, and automatic memory management.

• Access modifiers in Java are public, private, protected, and default. They control the visibility and accessibility of classes, methods, and variables.

• ArrayList is a dynamic array in Java that can grow or shrink in size. It is ...read more
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Basic aptitude test easy to crack

Intermidiate level of coding

Advance level of coding test

Q1. Explain OOPS and how have you used it
Ans. 
OOPS stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPS focuses on creating objects that contain both data and methods to manipulate that data.

• Encapsulation, inheritance, and polymorphism are key principles of OOPS.

• I have used OOPS in projects to create classes and objects, define relationships between them, and implement inheritance and polymorphism.

• For example, I...read more
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Medium level questions from quants and reasoning

Dynamic programming and structures

Trees and graph related questions

Q1. Move All 0's to end of the array
Ans. 
Shift all 0's in an array to the end while maintaining the order of non-zero elements.
• Iterate through the array and maintain a count of non-zero elements.

• Use a second pointer to place non-zero elements in their new positions.

• Fill the remaining positions in the array with 0's after all non-zero elements are placed.

• Example: For input [0, 1, 0, 3, 12], output should be [1, 3, 12, 0, 0].
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Q2. Explain about redux,context api etc
Ans. 
Redux and Context API are state management tools in React for managing application state efficiently.
• Redux is a predictable state container for JavaScript apps, allowing for centralized state management.

• Context API is a built-in React feature that allows for sharing state across components without prop drilling.

• Redux uses actions and reducers to manage state changes, while Context API uses Provider and Consumer compone...read more
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Q1. Tell me about your self.
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Q2. Tell me about your previous work and project
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