在构造函数中将int转换为float

Question

I have the following code:

public class Rectangle extends java.awt.Rectangle
{
    private Position position;


public Rectangle(Rectangle toCopy)
{
    this.position = toCopy.position;
}

public Rectangle(Position position, int width, int height)
{
    super(width, height);
    this.position = position;
}

This works fine, however I need width and height to be floats. The problem is the constructor in java.awt.Rectangle takes in an int type for width and height. Is there any way to make width and height floats within the constructor?

Answer 1

I believe you're looking for casting . This allows you to turn an float into a int . The implementation in your example would be:

public Rectangle(Position position, float width, float height) // Changed types to float
{
    super((int) width, (int) height); // Cast from float to int
    this.position = position;

    // width & height are floats, like requested
}

Answer 2

Just cast the int to a float using casting like this: float myfloat = (float) myInt;

So change this:

      public Rectangle(Position position, int width, int height)
{
super(width, height);
this.position = position;
}

To This:

   public Rectangle(Position position, int width, int height)
{
super((float) width,(float) height);
this.position = position;
}

Answer 3

Maybe you can try this:

int i;
float f = i * 1.0f;