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class CBox{
private int length;
private int width;
private int height;

public CBox (int l , int w , int h){
length = l;
width = w;
height = h;
}

public CBox (){
this (6,10,8);
System.out.println("沒有引數的建構元CBox長＝"+length+" 寬＝"+width+" 高＝"+height);
}

public void show (){
System.out.println("有引數的建構元CBox長＝"+length+" 寬＝"+width+" 高＝"+height);
}
}

public class hw9_1{
public static void main(String args[]){
CBox box1 = new CBox();

CBox box2 = new CBox(6,10,8);
box2.show();
}
}