Java Tutorials

How to Use JavaScript Callback Functions

You’ve probably seen a few code snippets use the word “callback” inside a function. Callbacks are a special type of function that are passed inside another function. Callbacks are often used inside event handlers to run a block of code.…

Lambda Expressions in Java: A Guide

How to Use Lambda Expressions in Java Have you ever thought that some methods could fit on one line, if only it weren’t for the verbose Java syntax that you’ve got to use to declare a method? You’re not the…

Java Random Number: A Beginner’s Guide

How to Generate a Java Random Number 5. 7. 22. For us humans, it’s easy to generate a random number. All we have to do is ask ourselves for a number, and one pops into our mind. If only it…

Java Bubble Sort: A Guide

How to Write a Java Bubble Sort When programmers talk about bubble sorts, they are not talking about the water bubbles that you’ve probably blown at some point in your life. They are talking about a sorting algorithm that is…

Java Boolean: A Beginner’s Guide

How to Use Booleans in Java True or false. We’re not talking about a question on a standardized test. True and false are the values that can be stored inside the Boolean data type. In programming, Booleans are used to…

Binary Search Java: A Guide

How to Write a Binary Search Algorithm in Java Computers do not search through items like humans do. Whereas humans can change their approach to finding something, computers need to be given specific instructions on how to locate a particular…

Java Variables: A Guide for Beginners

How to Use Java Variables What is a variable, you ask? It’s an essential concept of programming, and without it developing applications would be significantly more difficult. A variable is a way to label values that you’re using in your…

How to Use Java Classes and Objects

What do we mean when we talk about a class in Java? It’s certainly not a class like you’d have in school, with students and teachers. A class is a blueprint for an object in your code. Java is an…

Java Array: A Guide for Beginners

What if there was a way that you could declare one variable that stores multiple values? There is? That’s great. In Java, there’s a concept called an array that allows you to do exactly this. You can store multiple values…

if…else Java: A Beginner’s Guide

When you think about it, there’s a lot of “ifs” in our lives. If the grocery store is open, we can go in and buy groceries; otherwise, we cannot. If it’s 12 noon, then it is time to take a…

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