59 lines
1.0 KiB
Java
59 lines
1.0 KiB
Java
/**
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* Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007) Date: 2022/03/27
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* Description: This is the Shape class.
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*/
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public class Shape {
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private double x;
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private double y;
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/**
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* Constructor
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*
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* @param x the position of the center point of the shape
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* @param y the position of the center point of the shape
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*/
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public Shape(double x, double y) {
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this.x = x;
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this.y = y;
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}
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/**
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* Getter of x
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*
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* @return the position of the center point of the shape
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*/
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public double getX() {
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return x;
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}
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/**
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* Getter of y
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*
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* @return the position of the center point of the shape
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*/
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public double getY() {
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return y;
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}
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/**
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* The are of the shape
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*
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* @return the area of the shape
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*/
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public double area() {
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System.out.println("An unknown shape has an unknown area!");
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return -1.0;
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}
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/**
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* Test
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*/
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public static void testShape() {
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Shape s = new Shape(1.0, 2.0);
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System.out.println(s.getX() == 1.0);
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System.out.println(s.getY() == 2.0);
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System.out.println(s.area() == -1.0);
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}
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}
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