Java Functions 101: Core Ideas, Practical Use, and a Hands-On Example

In Java, functions are methods that are used to perform specific tasks or computations, and are essential building blocks for organizing and reusing code. They can accept input parameters, perform a set of instructions, and return a result. This short will provide an overview of functions in Java, including how to define, call, and use them effectively.

In this code example, we define a function called addNumbers that takes two integer parameters and returns their sum. Inside the main method, we call the addNumbers function with the arguments 3 and 5, store the result in a variable, and print it to the console.