使用多种方法重载Java构造函数

Question

我在课堂上有一个项目作业。我已经理解了超载的基本原理，但有一点我完全搞不清楚。如何仅从我尝试使用的方法中输出？好吧，让我给你看看代码，而不是解释

public class Box {
 private int length, width, height;

 public Box(int length){
  this.length=length;
  System.out.println("Line created with length of" + length + ".");
 }
 public Box(int length, int width){
  this.length = length;
  this.width = width;
  System.out.println("Rectangle created with the length of " + length + " ");
  System.out.println("and the width of " + width + ".");
 }
 public Box(int length, int width, int height){
  this.length=length;
  this.width=width;
  this.height=height;
  System.out.println("Box created with the length of " + length + ", ");
  System.out.println("the width of " + width + ", ");
  System.out.println("and the height of " + height +".");

 }
}


class BoxTest {

 public static void main(String[] args) {
  Box BoxObject1 = new Box(1,0,0);
  Box BoxObject2 = new Box(1,2,0);
  Box BoxObject3 = new Box(1,2,3);



 }

}

那好吧！如何调用类BoxTest只输出给定的内容。例如，使用Box-BoxObject1，我想输出“长度为XX的线条”，而不是其他线条。对于Box Object2，我想输出“长度为XX，宽度为XX的矩形”。我不知道接下来该怎么做才能让这一切发生。任何帮助都将不胜感激