修改版本1中Fan类,让其继承Pane类,并且把color属性设置为Color类型,默认属性为red。随机产生radius,取值范围为1-5;随机产生颜色,取值范围为red、blue、yellow、green、orange;根据color、radius属性值绘制风扇。
时间: 2024-03-25 20:36:09 浏览: 16
好的,我已经理解你的要求。这里是修改后的Fan类的代码:
```java
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import java.util.Random;
public class Fan extends Pane {
private Color color;
private int radius;
public Fan() {
this.color = Color.RED;
this.radius = new Random().nextInt(5) + 1;
drawFan();
}
public Fan(Color color, int radius) {
this.color = color;
this.radius = radius;
drawFan();
}
private void drawFan() {
double centerX = getWidth() / 2;
double centerY = getHeight() / 2;
double radius = Math.min(centerX, centerY) - 10;
for (int i = 0; i < 4; i++) {
Arc arc = new Arc(centerX, centerY, radius, radius, i * 90 + 30, 30);
arc.setType(ArcType.ROUND);
arc.setFill(color);
arc.setStroke(Color.BLACK);
arc.setStrokeWidth(1);
getChildren().add(arc);
}
}
@Override
protected void setWidth(double value) {
super.setWidth(value);
drawFan();
}
@Override
protected void setHeight(double value) {
super.setHeight(value);
drawFan();
}
}
```
在这个版本中,Fan类继承了Pane类,并且新增了color和radius两个属性。在无参构造函数中,我们随机生成了radius和color属性的值,并且调用了drawFan()方法来绘制风扇。在有参构造函数中,我们可以指定radius和color属性的值,并且也会调用drawFan()方法来绘制风扇。drawFan()方法中,我们通过for循环来绘制四个弧线,并且根据color和radius属性的值来设置弧线的颜色和大小。在setWidth()和setHeight()方法中,我们也调用了drawFan()方法来重新绘制风扇,以适应Pane的宽度和高度的变化。
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