public class MySquare {
/**
* 边长
*/
private double side;
/**
*
构造方法 * @param side
*/
public MySquare(double side) {
super();
this.side = side;
}
/**
* 获取面积
* @return
*/
public double getArea(){
return this.side*this.side;
}
/**
* 获取周长
* @return
*/
public double getPerimeter(){
return this.side+this.side;
}
public static void main(String[] args) {
double side = 2.5;
MySquare ms = new MySquare(side);
System.out.println(ms.getArea()); //输出面积
System.out.println(ms.getPerimeter()); //输出周长
}
}