HCLTech Senior Consultant Interview Questions and Answers

FOR ALL ENTRIES is used to loop through internal tables in ABAP.

• FOR ALL ENTRIES is used to loop through an internal table and compare fields with another internal table.

• It is used to avoid nested loops and improve performance.

• Example: FOR ALL ENTRIES in itab WHERE field1 = itab2-field1.

I am expecting a competitive salary based on my experience, skills, and the market rate for Senior Consultants.

• I am looking for a salary that reflects my expertise and contributions to the company

• I have researched the average salary range for Senior Consultants in this industry

• I am open to negotiation based on the overall compensation package offered

Oops concepts are fundamental principles of object-oriented programming, including inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: Parent class 'Animal' and child class 'Dog'.

• Polymorphism: Allows objects of different classes to be treated as objects of a common superclass. Example: 'Animal' class with 'eat()' method ov...read more

Solid principles are a set of five design principles in object-oriented programming to make software more maintainable, flexible, and robust.

• Single Responsibility Principle: A class should have only one reason to change.

• Open/Closed Principle: Software entities should be open for extension but closed for modification.

• Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclas...read more

To check the moca command, use the 'moca' command in the command line interface.

• Open the command line interface on your computer

• Type 'moca' and press enter to see if the command is recognized

• Check the output for any errors or information related to the 'moca' command

A mutating error occurs when a program attempts to modify a value that is supposed to be immutable.

• Mutating errors commonly occur in programming languages that have immutable data structures, such as Swift or Rust.

• Attempting to change a constant value in Swift will result in a mutating error.

• In Rust, trying to modify a value that is borrowed immutably will lead to a mutating error.

Pragma autonomous transaction is used in PL/SQL to create a subtransaction that is independent of the main transaction.

• Pragma autonomous transaction is used to create a subtransaction within a main transaction.

• The subtransaction operates independently of the main transaction and can commit or rollback changes without affecting the main transaction.

• It is commonly used to log information or perform auditing tasks without...read more

Functions in programming are blocks of code that perform a specific task. They can be reusable and help in organizing code.

• Functions can be categorized as built-in functions or user-defined functions.

• Built-in functions are provided by the programming language and can be directly used.

• User-defined functions are created by the programmer to perform specific tasks.

• Functions can have parameters and return values.

• Examples o...read more