Technical Questions
How is Java different from other programming languages?
Explain the properties of OOPs.
What is Polymorphism in Java explain with some real-life example?
What do you mean by joins in SQL?
Explain left join and right join with some real-life example.
What are the technical problems that you faced and how did you manage the overall project?

Question

Technical Questions

How is Java different from other programming languages?
Explain the properties of OOPs.
What is Polymorphism in Java explain with some real-life example?
What do you mean by joins in SQL?
Explain left join and right join with some real-life example.
What are the technical problems that you faced and how did you manage the overall project?

Accepted Answer

Answering technical questions for a Full Stack Engineer interview.

Java is different from other programming languages due to its platform independence and object-oriented nature.
OOPs properties include encapsulation, inheritance, polymorphism, and abstraction.
Polymorphism in Java allows objects of different classes to be treated as objects of a common superclass.
An example of polymorphism is a shape class with different subclasses like circle and rectangle.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Left join returns all rows from the left table and matching rows from the right table.
Right join returns all rows from the right table and matching rows from the left table.
A real-life example of left join is getting all students and their corresponding grades.
A real-life example of right join is getting all employees and their assigned projects.
Managing technical problems in a project involves identifying issues, finding solutions, and coordinating with team members.
Examples of technical problems could be software bugs, performance issues, or integration challenges.

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