package jichuti;


/**
 * 正方形类（实现Shape接口）
 */
public class Square implements Shape {
    private String color;  // 颜色
    private double side;   // 边长

    public Square(String color, double side) {
        this.color = color;
        this.side = side;
    }

    @Override
    public String getColor() {
        return color;
    }

    @Override
    public double getArea() {
        return side * side;  // 正方形面积=边长×边长
    }

    // getter和setter
    public double getSide() { return side; }
    public void setSide(double side) { this.side = side; }
}