JAVA题目，求解答，求代码！！！！

设计一个Point类，类中包含点的坐标x、y，同时，包含一个通过另一个点求两点之间距离的distance（Point p）方法。利用该类实现点（3,4）到点（5,6）的距离。

坐等大神解答。。。。。。

public class Point {
    private int xValue;
    private int yValue;

    public Point(int xValue, int yValue) {
        this.setxValue(xValue);
        this.setyValue(yValue);
    }

    public double distance(Point point) {
        double distance = Math.sqrt(Math.pow((point.getxValue() - this.xValue),
                2) + Math.pow((point.getyValue() - this.yValue), 2));
        return distance;
    }

    /**
     * @return the xValue
     */
    public int getxValue() {
        return xValue;
    }

    /**
     * @param xValue
     *            the xValue to set
     */
    public void setxValue(int xValue) {
        this.xValue = xValue;
    }

    /**
     * @return the yValue
     */
    public int getyValue() {
        return yValue;
    }

    /**
     * @param yValue
     *            the yValue to set
     */
    public void setyValue(int yValue) {
        this.yValue = yValue;
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "点(" + this.xValue + "," + this.yValue + ")";
    }

    public static void main(String[] args) {
        Point pointA = new Point(3, 4);
        Point pointB = new Point(5, 6);
        double distance = pointA.distance(pointB);
        System.out.println(pointA.toString() + "与" + pointB.toString()
                + "之间的距离为：" + distance);
    }
}

class Point{
int x;
int y;
Point(int x,int y){
this.x=x;
this.y=y;
}
double distance(Point a,Point b){
return Math.sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));
}
}

 public class Point {

    private int _x;
    private int _y;

    public Point(int x, int y) {
        this._x = x;
        this._y = y;
    }

    public int get_x() {
        return _x;
    }

    public void set_x(int _x) {
        this._x = _x;
    }

    public int get_y() {
        return _y;
    }

    public void set_y(int _y) {
        this._y = _y;
    }

    public static double getDistance(Point p1, Point p2) {
        int x = Math.abs(p2.get_x() - p1.get_x());
        int y = Math.abs(p2.get_y() - p1.get_y());

        return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
    }
}

 public class Test {

    public static void main(String[] args) {
        Point p1 = new Point(3, 4);
        Point p2 = new Point(5, 6);

        double distance = Point.getDistance(p1, p2);
        System.out.println(distance);//2.8284271247461903
    }
}

class Point{

double x;
double y;

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

public double getX() {
    return x;
}
public void setX(double x) {
    this.x = x;
}
public double getY() {
    return y;
}
public void setY(double y) {
    this.y = y;
}

public double distance(Point p){
    double a = Math.abs(this.x - p.getX());
    double b = Math.abs(this.y - p.getY());
    return Math.sqrt(Math.pow(a, 2) + Math.pow(b, 2));      
}

}

class Point{

double x;
double y;

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

public double getX() {
    return x;
}
public void setX(double x) {
    this.x = x;
}
public double getY() {
    return y;
}
public void setY(double y) {
    this.y = y;
}

public double distance(Point p){
    double a = Math.abs(this.x - p.getX());
    double b = Math.abs(this.y - p.getY());
    return Math.sqrt(Math.pow(a, 2) + Math.pow(b, 2));      
}

}