How to call java methods from different java file.

Hi, i create 2 files:
CircleCalculationMethod.java
Main.java
In Main.java, How can i call method in CircleCalculationMethod.java ?
Should i put everything in same folder ??
Should i do something like "import CircleCalculationMethod.java"
Should i do something like create a package
Thanks
P/S: i use Eclipse software

As I suggested in your OTHER threads - the BEST WAY to learn, and often the fastest, is to TRY THINGS yourself.
Just posting code you get from the internet and asking others to modify it for you won't teach you anything.
Go through The Java Tutorials. There are trails for ALL of the basic functionality that include working, sample code.
This is the trail on 'Packages':
Lesson: Packages (The Java™ Tutorials > Learning the Java Language)
And this is the one on 'Classes and Objects'. This trail includes sections for methods and how to define and use them.
Lesson: Classes and Objects (The Java™ Tutorials > Learning the Java Language)

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