Advance Techno Systems Interview Questions and Answers for Experienced

Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.

• Inheritance allows code reusability and saves time and effort in writing new code.

• The existing class is called the parent or base class, and the new class is called the child or derived class.

• The child class inherits all the properties and methods of the parent class and can also add its ...read more

Different classes in Java are used to define objects and their behavior.

• Classes are the building blocks of Java programs.

• They define the properties and methods of objects.

• Some commonly used classes in Java are String, Integer, ArrayList, etc.

• Classes can be inherited to create new classes with additional features.

• Java provides a rich set of predefined classes, and developers can create their own classes.

Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.

• Inheritance allows for code reuse and promotes a hierarchical organization of code.

• The existing class is called the superclass or parent class, and the new class is called the subclass or child class.

• The subclass inherits all the properties and methods of the superclass, and can also add ...read more

Java has four different classes: abstract, final, public and default.

• Abstract class cannot be instantiated and is used as a base class for other classes

• Final class cannot be inherited and is used to prevent further modification

• Public class can be accessed from anywhere in the program

• Default class can only be accessed within the same package

• Example: public class MyClass {}

Creating public and private classes in Java is useful for encapsulation and access control.

• Creating a class as public allows it to be accessed from any other class.

• Creating a class as private restricts its access to only within the same class.

• Public classes are typically used for classes that need to be accessed by other classes or modules.

• Private classes are typically used for helper classes or internal implementation...read more

A program with 8 loops

• Loops can be of different types like for, while, do-while, foreach, etc.

• The loops can be nested within each other to create complex logic.

• The program can perform various operations within the loops like printing, calculating, etc.

I want to join HCl because of their strong reputation in the software industry and their focus on innovation and career growth opportunities.

• HCl has a strong reputation in the software industry for delivering high-quality products and services.

• They have a culture of innovation and encourage employees to think creatively and come up with new ideas.

• HCl offers excellent career growth opportunities and invests in the profe...read more