构造函数已经在课堂上[关闭]

Question

    private Square wall;
public House()
{
    wall = new Square();
    wall.makeVisible();
    wall.changeSize(80);
    wall.moveHorizontal(40);
    wall.moveVertical(170);
}

private Triangle roof;
public House()
{
    roof = new Triangle();
    roof.makeVisible();
    roof.changeSize(50, 120);
    roof.moveHorizontal(90);
    roof.moveVertical(155);
    roof.changeColor("Black");
}

编辑：修复了它，但是当我尝试添加这个时，我再次收到错误。

private Square window;
public House(Square window)
{
window = new Square();
}

我明白我为什么会得到这个，因为我已经有 2 个具有相同签名的相同构造函数。无论如何我可以将它们合并在一起吗？

Answer 1

也许考虑构造函数重载 .重载是一种技术，在这种技术中，一个类可以有任意数量的构造函数，这些构造函数的参数列表不同，您的代码无法正常工作的原因是因为您有 2 个具有相同参数的构造函数。

private Square wall;
public House(Square wall)
{
    this.wall = new Square();
    this.wall.makeVisible();
    this.wall.changeSize(80);
    this.wall.moveHorizontal(40);
    this.wall.moveVertical(170);
}

private Triangle roof;
public House(Triangle roof)
{
    this.roof = new Triangle();
    this.roof.makeVisible();
    this.roof.changeSize(50, 120);
    this.roof.moveHorizontal(90);
    this.roof.moveVertical(155);
    this.roof.changeColor("Black");
}

Answer 2

是的！ 你可以这样做：

public House()
{
    wall = new Square();
    wall.makeVisible();
    wall.changeSize(80);
    wall.moveHorizontal(40);
    wall.moveVertical(170);
    roof = new Triangle();
    roof.makeVisible();
    roof.changeSize(50, 120);
    roof.moveHorizontal(90);
    roof.moveVertical(155);
    roof.changeColor("Black");
}