16 lines
247 B
Java
16 lines
247 B
Java
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public abstract class Shape {
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private String name;
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public Shape(String name) {
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this.name = name;
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}
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public abstract double area();
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public void showInfo() {
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System.out.println(this.name + "の面積は" + this.area() + "です");
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}
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}
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