Bresenham算法绘制圆形的java代码

以下是使用Bresenham算法绘制圆形的Java代码示例：

import java.awt.Graphics;

public class BresenhamCircle {
    private int xc, yc, r;

    public BresenhamCircle(int xc, int yc, int r) {
        this.xc = xc;
        this.yc = yc;
        this.r = r;
    }

    public void draw(Graphics g) {
        int x = 0, y = r;
        int d = 3 - 2 * r;

        while (x <= y) {
            plot(g, x, y);
            if (d < 0)
                d = d + 4 * x + 6;
            else {
                d = d + 4 * (x - y) + 10;
                y--;
            }
            x++;
        }
    }

    private void plot(Graphics g, int x, int y) {
        g.drawLine(xc + x, yc + y, xc + x, yc + y);
        g.drawLine(xc - x, yc + y, xc - x, yc + y);
        g.drawLine(xc + x, yc - y, xc + x, yc - y);
        g.drawLine(xc - x, yc - y, xc - x, yc - y);
        g.drawLine(xc + y, yc + x, xc + y, yc + x);
        g.drawLine(xc - y, yc + x, xc - y, yc + x);
        g.drawLine(xc + y, yc - x, xc + y, yc - x);
        g.drawLine(xc - y, yc - x, xc - y, yc - x);
    }
}

在这个示例中，我们创建了一个名为BresenhamCircle的类，该类接受圆心坐标和半径作为参数，并使用Bresenham算法绘制圆形。draw方法用于在Graphics对象上绘制圆形，而plot方法用于绘制圆形的八个象限。