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15 lines
418 B
15 lines
418 B
public class ShapeUtil {
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public static void printArea(Shape shape) {
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System.out.println("图形面积为：" + shape.getArea());
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}
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public static void main(String[] args) {
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Shape circle = new Circle(5);
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Shape rectangle = new Rectangle(4, 6);
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Shape triangle = new Triangle(3, 8);
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printArea(circle);
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printArea(rectangle);
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printArea(triangle);
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}
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}
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