HCLTech Technical Lead Interview Questions, Process, and Tips

List is mutable, Tuple is immutable in Python.

• List can be modified after creation, Tuple cannot be modified.

• List uses square brackets [], Tuple uses parentheses ().

• List is used for collections of items that may need to be changed, Tuple is used for fixed collections of items.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)

Decorator is a design pattern in object-oriented programming that allows behavior to be added to individual objects, either statically or dynamically.

• Decorator pattern involves a set of decorator classes that are used to wrap concrete components.

• It allows behavior to be added to individual objects without affecting the behavior of other objects from the same class.

• Decorators provide a flexible alternative to subclassin...read more

Collections in Java are classes and interfaces that provide a way to store and manipulate groups of objects.

• Collections framework includes interfaces like List, Set, and Map, along with classes like ArrayList, HashSet, and HashMap.

• Collections provide methods for adding, removing, and accessing elements in a group.

• Collections also provide algorithms for sorting, searching, and manipulating groups of objects.

• Example: Lis...read more

Pipes in Angular are used for transforming data before displaying it in the view.

• Pipes are used to format data in Angular templates.

• They can be used for currency, date, uppercase/lowercase transformations, etc.

• Custom pipes can also be created for specific data transformations.

• Pipes are applied using the '|' symbol in template expressions.

A functional interface is an interface with only one abstract method, used in Java to enable lambda expressions.

• Functional interfaces can have multiple default or static methods, but only one abstract method.

• They are used in Java to enable the use of lambda expressions.

• Examples of functional interfaces in Java include Runnable, Callable, and ActionListener.

Method reference is a shorthand syntax for lambda expressions to call a method.

• Method reference is used to refer to a method without invoking it.

• It can be used to make the code more concise and readable.

• There are four types of method references: static, instance, constructor, and array constructor references.

I expect a competitive salary based on my experience, skills, and the market standard.

• I am looking for a salary that is in line with industry standards for a Technical Lead position.

• I am open to negotiation based on the overall compensation package offered by HCL Tech.

• I have researched the average salary range for Technical Leads in the region and am looking for a competitive offer.