Java program? Separating into 2 different classes?

[Spittin' The Truth]

Hey there, I have a working java program, but now I have to separate the program into 2 different classes? What do I need to use?

Basically I have a triangle program I have made that asks the user to enter 3 sides and then it tells them what type of triangle it is.

I now have to make 2 classes, one class that holds all the maths and the other that holds everything else.

How can I do this? Do I need to use an interface etc? Thanx!

[MyOhMyOhMy]

No you dont need an interface. Keep your present class somewhat as is with all the math functions in it. Remove the parts where you are getting the inputs from the user. Make sure all your math stuff is in public methods.
Create a second class that has the main method. In the main method get the user inputs and store in variables. Initialize an object of the first class and call the required math methods of the first class with the user inputs as parameters to give you the results. Your second class would be something like this

class MainClass {
public static void main(String args[]){
get user inputs
store them in variables (example sidex,sidey,sidez)
mathClass oldclass = new mathClass();
result = oldclass.getAreaOfTriangle(sidex,sidey,sidez);
System.out.println("Area = " + result);
}
}

Your old class will look like this:
class mathClass {
public double getAreaOfTriangle(int x,inty,intz){
calculate area;
result = area calculated;
return result;
}
}