Question: When a new Shape instance is added or an existing Shape object is removed from the ShapeModel, the change should reflect in the JTree component.

When a new Shape instance is added or an existing Shape object is removed from the ShapeModel, the change should reflect in the JTree component. How do we do that using Task

1

and then implement method to allow the application to cut and paste shapes. The Form is used by the user to specify attribute values for the

nev Shape to be created, and the EormHadler is responsible for

instantiating the correct Shape subclass and adding the new

When a new Shape instance is added or an existing Shape

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