OroSoft Solutions Java Developer Interview Questions and Answers

Certifications are not mandatory for software developers, but can add value to their resume.

• Certifications in programming languages like Java, Python, C++

• Certifications in software development methodologies like Agile, Scrum

• Certifications in cloud computing platforms like AWS, Azure

• Certifications in security like CISSP, CEH

• Certifications in project management like PMP

• Certifications in mobile app development like Androi...read more

For loop is used for iterating over a range of values while for each loop is used for iterating over elements of an array.

• For loop is used when the number of iterations is known beforehand.

• For each loop is used when the number of iterations is not known beforehand.

• For loop can be used with any iterable object.

• For each loop can only be used with arrays and other iterable objects.

• For loop uses an index variable to access...read more

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects to be treated as if they are of multiple types.

• It enables code to be written that can work with objects of different classes in a uniform way.

• Polymorphism can be achieved through method overloading or method overriding.

• Example: A shape class can have multiple subclasses like circle, square, triangle, etc. and all can be treated a...read more

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 code organization.

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

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