To implement a graphical application to add shapes at mouse click location Program plan: In the file “ GraphData.java ”, import necessary packages, and create a class “ GraphData”, Declare an “ArrayList”. Define default constructor. Define a method to set the shape. Define a method to return the size of the array list. Define a method to get a graph shape. In the file “ GraphShape.java ”, import necessary packages, and create a class “ GraphShape”, Define the constructor. Declare a method “draw()” to draw the shape. Declare a method “getColor()” to get the color. In the file “ LineShape.java ”, import necessary packages, and create a class “ LineShape”, Define the constructor. Define a method “draw()” to draw the line. In the file “ EllipseShape.java ”, import necessary packages, and create a class “ EllipseShape”, Define the constructor. Define a method “draw()” to draw the ellipse. In the file “ RectangleShape.java ”, import necessary packages, and create a class “ RectangleShape”, Define the constructor. Define a method “draw()” to draw the rectangle. In the file “ GraphPanel.java ”, import necessary packages, and create a class “ GraphPanel”, Define the constructor. Define a method “paintComponent()” to draw the line. Define a method “addShape()” to add a shape to the list. Define a method “getGraphData()” to get the graph data. Define a method “setGraphData()” to set the graph data. In the file “ GraphicsEditorFrame.java ”, import necessary packages, and create a class “ GraphicsEditorFrame” that create a graphics editor frame to hold all the component, In the file “ GraphicsEditorViewer.java ”, create a class “ GraphicsEditorViewer”, Define the “main()” method, Create an object for “ThreeColorsFrame”. Set the fame to exit on close. Set the frame’s title. Make the frame visible.

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Chapter 20, Problem 7PP

Program Plan Intro

To implement a graphical application to add shapes at mouse click location

Program plan:

In the file “GraphData.java”, import necessary packages, and create a class “GraphData”,

Declare an “ArrayList”.

Define default constructor.

Define a method to set the shape.

Define a method to return the size of the array list.

Define a method to get a graph shape.

In the file “GraphShape.java”, import necessary packages, and create a class “GraphShape”,

Define the constructor.

Declare a method “draw()” to draw the shape.

Declare a method “getColor()” to get the color.

In the file “LineShape.java”, import necessary packages, and create a class “LineShape”,

Define the constructor.

Define a method “draw()” to draw the line.

In the file “EllipseShape.java”, import necessary packages, and create a class “EllipseShape”,

Define the constructor.

Define a method “draw()” to draw the ellipse.

In the file “RectangleShape.java”, import necessary packages, and create a class “RectangleShape”,

Define the constructor.

Define a method “draw()” to draw the rectangle.

In the file “GraphPanel.java”, import necessary packages, and create a class “GraphPanel”,

Define the constructor.

Define a method “paintComponent()” to draw the line.

Define a method “addShape()” to add a shape to the list.

Define a method “getGraphData()” to get the graph data.

Define a method “setGraphData()” to set the graph data.

In the file “GraphicsEditorFrame.java”, import necessary packages, and create a class “GraphicsEditorFrame” that create a graphics editor frame to hold all the component,

In the file “GraphicsEditorViewer.java”, create a class “GraphicsEditorViewer”,

Define the “main()” method,

Create an object for “ThreeColorsFrame”.

Set the fame to exit on close.

Set the frame’s title.

Make the frame visible.

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