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29 lines
618 B
29 lines
618 B
/**
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* 三角形（已知底与高）：面积 = 底 * 高 / 2
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*/
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public class Triangle extends Shape {
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private final double base;
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private final double height;
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public Triangle(double base, double height) {
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if (base <= 0 || height <= 0) {
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throw new IllegalArgumentException("底和高必须为正数");
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}
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this.base = base;
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this.height = height;
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}
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public double getBase() {
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return base;
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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 base * height / 2.0;
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}
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}
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