What does point mean in java

Java problem defines a Point class

Define a Point class, the member variables are x, y, and the member function set() is set The value of x, y, get() gets the value of x, y, and defines a point object to call set() and get(), and defines a point object to call set() and get() constructor overload, distance( ) represents the distance between 2 points.

Example

public class Point {
 
    private int x;
    private int y;
 
    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }
 
    public int getX() {
        return x;
    }
 
    public void setX(int x) {
        this.x = x;
    }
 
    public int getY() {
        return y;
    }
 
    public void setY(int y) {
        this.y = y;
    }
     
    public double distance(Point p1,Point p2){
        return Math.sqrt((p2.getX()-p2.getX())*(p2.getX()-p2.getX())+(p2.getY()-p1.getY())*(p2.getY()-p1.getY()));
    }
     
    public static void main(String args[]){
        Point p1 = new Point(14,17);
        Point p2 = new Point(23,90);
        double s = p1.distance(p1,p2);
        System.out.println("2点之间的距离为："+s);
    }
}

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