Nucleus Software Exports Interview Questions and Answers

Static binding occurs at compile time, while dynamic binding happens at runtime, affecting method resolution in OOP.

• Static Binding: Also known as early binding, it resolves method calls at compile time. Example: Method overloading in Java.

• Dynamic Binding: Known as late binding, it resolves method calls at runtime. Example: Method overriding in Java using polymorphism.

• Performance: Static binding is generally faster...read more

Local, instance, and global variables differ in scope and lifetime, affecting how and where they can be accessed in code.

• Local Variables: Defined within a function or block, accessible only within that scope. Example: `void func() { int x = 10; }`.

• Instance Variables: Belong to an instance of a class, accessible through objects. Example: `class Car { int speed; }`.

• Global Variables: Defined outside any function or c...read more

Interfaces define contracts for classes, while abstract classes provide a base with shared code and can have state.

• An interface can only declare methods, while an abstract class can declare methods and provide implementations.

• A class can implement multiple interfaces but can inherit from only one abstract class.

• Interfaces cannot have instance variables, while abstract classes can have both instance variables and m...read more

Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class

• Example: Class 'Car' can inherit from class 'Vehicle' an...read more

Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

• Allows for code reusability and promotes a hierarchical relationship between classes

• Derived class can access the members of the base class

• Types of inheritance include single, multiple, multilevel, and hierarchical

• Example: class Animal { ... } class Dog extends Animal { ... }

• Example: class Shap...read more

Polymorphism is the ability of a function or method to behave differently based on the object it is called with.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Animal class with methods like eat() can be inherited by Dog and Cat classes which can override ...read more

To add a text field using HTML, use the <input> tag with type='text'

• Use the <input> tag with type='text' to create a text field

• Specify the name attribute to identify the field when submitting the form

• Optionally, set the placeholder attribute to provide a hint to the user