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29 lines
623 B
29 lines
623 B
/**
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* 矩形：面积 = 宽 * 高
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*/
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public class Rectangle extends Shape {
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private final double width;
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private final double height;
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public Rectangle(double width, double height) {
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if (width <= 0 || height <= 0) {
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throw new IllegalArgumentException("宽和高必须为正数");
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}
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this.width = width;
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this.height = height;
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}
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public double getWidth() {
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return width;
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}
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public double getHeight() {
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return height;
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}
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@Override
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public double getArea() {
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return width * height;
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}
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}
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