import javax.swing.JOptionPane;

public class Cube implements IGeometry {

	private double side;
	
	public Cube() {

		String userInput = "";
		userInput = JOptionPane.showInputDialog("Enter side ");
		side = Double.parseDouble( userInput );
	    }

	public double perimeter() {
		return( 4.0 * side );
	}
		
	public double area() {
		return( side * side );
	}
		
	public double volume(){
		return( side * side * side );
	}
	
	public void identify() {
		System.out.println("I am a CUBE");
	}	
} // end class