GSPANN Technologies Interview Questions and Answers

Java is mostly object-oriented, but not completely.

• Java supports primitive data types which are not objects.

• Static methods and variables are not associated with objects.

• Java also has some non-object-oriented features like the use of null.

• However, Java's core libraries and syntax are heavily object-oriented.

CSS is used for styling web pages, HTML is used for creating the structure of web pages, JavaScript is used for adding interactivity, PHP is used for server-side scripting.

• CSS stands for Cascading Style Sheets and is used to style the layout of web pages.

• HTML stands for HyperText Markup Language and is used to create the structure of web pages.

• JavaScript is a scripting language that allows for interactive elements on web pages.

• JavaScript can be used for form validation, anima...read more

OOPs is a programming paradigm that uses objects to represent real-world entities and their interactions.

• OOPs stands for Object-Oriented Programming.

• It focuses on encapsulation, inheritance, and polymorphism.

• Encapsulation is the process of hiding implementation details from the user.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• Examples of OOPs lan...read more

Wrapper class is a class that wraps a primitive data type to provide additional functionality.

• Wrapper classes are used to convert primitive data types into objects.

• They provide methods to convert between primitive data types and objects.

• Examples of wrapper classes include Integer, Double, Boolean, etc.

• Wrapper classes are immutable.

• They are often used in collections and generics.