interface extending multiple interfaces

Ball.java

package interfaceExtension;

public class Ball implements Bounceable {

	public void bounce() {
	} // Implement Bounceable's methods

	public void setBounceFactor(int bf) {
	}

	public void moveIt() {
	} // Implement Moveable's method

	public void doSphericalThing() {
	} // Implement Spherical
}

Bounceable.java

package interfaceExtension;

public interface Bounceable extends Moveable, Spherical {
	void bounce();

	void setBounceFactor(int bf);
}

Moveable.java

package interfaceExtension;

public interface Moveable {
	void moveIt();
}

Spherical.java

package interfaceExtension;

public interface Spherical {
	void doSphericalThing();
}