GraphicObject - } public void setColor( String color) {...

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abstract class GraphicObject{ private String color; public GraphicObject() { this("?"); } public GraphicObject(String color) { this.color = color; } public String getColor() { return color;
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Unformatted text preview: } public void setColor( String color) { this.color = color; } public abstract double calculateArea(); public abstract double calculatePerimeter(); }...
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