JAVA找不到符号构造函数

关注:52  答案:2  mip版

解决时间 2021-02-05 09:13

提问者彼岸独舞

2021-02-05 00:06

class Rect

{

private double length;

private double width;

public Rect(double length,double width)

{

this.width=width;

this.length=length;

}

public double getLength()

{

return length;

}

public double getWidth()

{

return width;

}

public void setLength(double length)

{

this.length=length;

}

public void setWidth(double width)

{

this.width=width;

}

public double girth(double Girth)

{

Girth=(width+length)*2;

return Girth;

}

public double area(double Area)

{

Area=width*length;

return Area;

}

}

class PlainRect extends Rect

{

private double startX;

private double startY;

public PlainRect(double length,double width,double startX,double startY)

{

setWidth(width);

setLength(length);

this.startX=startX;

this.startY=startY;

}

public PlainRect()

{

setLength(0);

setWidth(0);

startX=0;

startY=0;

}

public boolean isInside(double x,double y)

{

if(x>=startX&&x<=(startX+getLength())&&y>=startY&&y<=(startY+getWidth()))

{

return true;

}

else

return false;

}

}

错误：Rect.java:44:cannot resolve symbol

symbol:constructor Rect()

location:class Rect {

^

Rect.java:51:cannot resolve symbol

symbol:constructor Rect()

location:class Rect {

^

2 erroes

最佳答案

二级知识专家柒夏锦年

2021-02-05 00:29

public Rect(){

}

在Rect中添加无参数的构造

全部回答

1楼輓畱嶼赱

2021-02-05 01:36

在父类中，添加无参数的构造。

public rect(){

}

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