Question

JAVA编程2：2． 声明一个矩形类Rectangle，其中有2个构造方法。用不同的构造方法创建对象，并输出矩形的周

大神们拜托了呀

Answer 1

public class Rectangle {
// 矩形的长和宽
private double width;
private double height;

// 构造方法可以多个，只要参数不一样就可以
// 默认构造方法
public Rectangle() {

}

public Rectangle(double width, double height) {
this.height = height;
this.width = width;
}

public double getResult() {
return 2 * (this.height + this.width);
}

public double getWidth() {
return width;
}

public void setWidth(double width) {
this.width = width;
}

public double getHeight() {
return height;
}

public void setHeight(double height) {
this.height = height;
}
}