Chapter 6: Methods in Java - Java Language Tutorial

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A method in Java is a sequence of commands that are invoked in a predefined order.
A method declaration, or the method signature, is the API for the method and contains all essential information that needs to be known in order to call it. A method signature can be divided into several parts:

- The name of the method
- The input parameters of the method.
- The return type of the method.
- Possible exceptions that are thrown from the method.
- Method modifiers.

The format looks like this:

modifiers type name ( parameter-list ) [ throws exceptions ]

These different parts of the method signature will be explained in the coming sections.

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