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Creating your first class and instantiating objects from it in Java.

Calculating days until the user's next birthday.

A brief description of what the Java compiler is on about.

This video contains data structures and algorithms interview questions. One of the best book for Interview Questions Top 1000 ...

What is hashing? In this video we explain how hash functions work in an easy to digest way. Hashing is the process of converting ...

Is there any way to initialize an List in Java? Short answer: Kinda. Java doesn't provide a native initialization for Lists, so we ...

Working with parallel arrays in java.

What's going on behind the scenes when you call a method in Java?

Full Stack Developer Roadmap Beginner to Job Ready Complete Full Stack Developer Roadmap 2026 | From Beginner to Job ...

When you pass an object to a method, you are passing a copy of the *reference* to that object. That lets you update an object's ...

Java methods are somewhat like algebraic functions. Find out how they are similar and different.

You can have multiple methods with the same name as long as the number and/or types of the parameters is different.

Formatting numbers for money and other purposes using NumberFormat How to Round a Number to 2 Decimal Places in Java: ...

[no audio] And to fill in the placeholders, we take the members of our data structure. item.weight, item.serving_size, and item.price.

Arrays are reference variables, which means simple assignment doesn't make a copy of the values.

Primitives (int, double, etc.) have values stored in their memory locations. Objects have references to the memory where the data ...

In Java, you can have a two-dimensional array where each row has a different number of elements. This is called a ragged array.

Using the try-with-resources construct will allow Java to close files for you automatically so you don't have to do it explicitly.

Guidelines for giving your variables meaningful names.

How to pass arrays to methods and return arrays as results.