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java
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import java.awt.*; import java.awt.event.*; class Circle extends Shape { public Circle(Color color, int xPosition, int yPosition, int size) { super(color, xPosition, yPosition, size); } public void draw(Graphics g) { g.setColor(color); g.fillOval(position.x, position.y, size * 2, size * 2); } public void handleKeyPress(KeyEvent e) { int keyCode = e.getKeyCode(); if (keyCode == KeyEvent.VK_PLUS || keyCode == KeyEvent.VK_ADD) { resizeShape(1); } else if (keyCode == KeyEvent.VK_MINUS || keyCode == KeyEvent.VK_SUBTRACT) { resizeShape(-1); } } } class Square extends Shape { public Square(Color color, int xPosition, int yPosition, int size) { super(color, xPosition, yPosition, size); } public void draw(Graphics g) { g.setColor(color); g.fillRect(position.x, position.y, size * 2, size * 2); } public void handleKeyPress(KeyEvent e) { int keyCode = e.getKeyCode(); if (keyCode == KeyEvent.VK_PLUS || keyCode == KeyEvent.VK_ADD) { resizeShape(1); } else if (keyCode == KeyEvent.VK_MINUS || keyCode == KeyEvent.VK_SUBTRACT) { resizeShape(-1); } } } class Triangle extends Shape { public Triangle(Color color, int xPosition, int yPosition, int size) { super(color, xPosition, yPosition, size); } public void draw(Graphics g) { g.setColor(color); int[] xPoints = { position.x + size, position.x, position.x + 2 * size }; int[] yPoints = { position.y, position.y + 2 * size, position.y + 2 * size }; g.fillPolygon(xPoints, yPoints, 3); } public void handleKeyPress(KeyEvent e) { int keyCode = e.getKeyCode(); if (keyCode == KeyEvent.VK_PLUS || keyCode == KeyEvent.VK_ADD) { resizeShape(1); } else if (keyCode == KeyEvent.VK_MINUS || keyCode == KeyEvent.VK_SUBTRACT) { resizeShape(-1); } } }
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