设计并实现一个Point类。要求该类包含表示坐标的两个int型私有变量x、y，有两个构造方法Point()和Point(int xx, int yy),有能够返回x值和y值的成员函数方法，实现设置x值和y值的void setX(int xx)和void setY(int yy)方法，计算两点间距离的double distance(Point p)方法。其中计算平方根的方法是Math.sqrt()，如：double d=Math.sqrt(2);主函数内调用该类，构造两个点对象（0，0）和（10，10），输

出两个点的坐标、两点间距离。

代码实现如下：

public class Point {
    private int x;
    private int y;

    public Point() {
        this.x = 0;
        this.y = 0;
    }

    public Point(int xx, int yy) {
        this.x = xx;
        this.y = yy;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    public void setX(int xx) {
        this.x = xx;
    }

    public void setY(int yy) {
        this.y = yy;
    }

    public double distance(Point p) {
        int dx = this.x - p.getX();
        int dy = this.y - p.getY();
        return Math.sqrt(dx * dx + dy * dy);
    }

    public static void main(String[] args) {
        Point p1 = new Point(0, 0);
        Point p2 = new Point(10, 10);
        System.out.println("Point 1: (" + p1.getX() + ", " + p1.getY() + ")");
        System.out.println("Point 2: (" + p2.getX() + ", " + p2.getY() + ")");
        System.out.println("Distance between points: " + p1.distance(p2));
    }
}

输出结果为：

Point 1: (0, 0)
Point 2: (10, 10)
Distance between points: 14.142135623730951