Archive of stories published by Let’s Do It PL

Let’s Do It PL

What is Test-Driven Development? Why TDD is so important?

When we search for a job we come across the “Test-Driven Development” term a lot but what does it mean? Why this…


Let’s Do It PL

What is “Abstraction”? What are the differences between Abstract Classes and Interfaces?

Abstraction is another important principle of Object-Oriented Programming. When…


Let’s Do It PL

Arrays vs ArrayList

With explanation and comparison in Java


Let’s Do It PL

What is “Encapsulation” and What are the Benefits of It?

Object-Oriented Programming is a very beneficial programming type for creating objects that have data and functions…


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What is “Polymorphism” and what are the advantages of it?

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