User-Defined Methods
Learn how to make your own methods.
We know that built-in methods are like standard ready-to-cook recipes everyone knows how to use. We also know how to use these built-in methods inside our main method. But did you know we can create our own customized methods as well? After all, we can’t possibly have a ready-made method for every need in the world. Imagine if we wanted to create YouTube, and there was a built-in method buildYouTubeForMe("please")? It doesn’t work like that, right? Instead, Java lets us create methods of our own that we can then use as and when required, just like we can use built-in methods.
All in all, methods help create modular and reusable code, such as displaying a standard message, generating random numbers, or performing other predefined tasks.
What are user-defined methods?
Here’s the basic structure of a method:
public void methodName(int parameter1, int parameter2) { // this method takes 2 inputs of datatype integer// Method body where you will write the Java code// ...// because this method had a return type set to void, this will return nothing}
The structure is just like the main method we’ve already seen so many times. The only thing different ...