Inheritance getter and toString() - java -

i'm practicing inheritance in java , got stuck on getter method in subclass. here point class:

package oop.linepoint;  public class point {     private int x;     private int y;      public point(int x, int y){         this.x = x;         this.y = y;     }      public string tostring() {           return "point: (" + x + "," + 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;     }  } 

here linesub class:

package oop.linepoint;  public class linesub extends point{     point end;      public linesub(int beginx, int beginy, int endx, int endy){         super(beginx, beginy);         this.end = new point(endx, endy);     }     public linesub(point begin, point end){         super(begin.getx(),begin.gety());         this.end = end;     }     @override     public string tostring() {         return "linesub [begin=" + "(" + super.getx() +"," + super.gety() +") " + "end=" + end + "]";     }     public point getend() {         return end;     }     public void setend(point end) {         this.end = end;     }      public point getbegin(){      }     public void setbegin(point begin){         setx(begin.getx());         sety(begin.gety());     }  } 

my problem:

1) tostring() method. i'm trying print 2 points(begin , end). can see end easy begin point inherited , idk should type. way i'm getting x , y of point working me seems lame way of doing that. sure there better way, please me that?

2) point getbegin() method. i've tried:

public point getbegin(){   return (point)this;  }//not working(getting whole point object) 

and

public point getbegin(){   return new point(getx(), gety());  }//very noob way 

i have no other ideas, please lend me wisdom.

to start point must cast point. can call super.tostring access tostring of parent class.

    @override     public string tostring() {         return "linesub [begin=" + super.tostring() + "end=" + end.tostring() + "]";     }      public point getbegin() {         return (point) this;     } 

the fact have cast indicator have hierarchy wrong. structure normal implemented using 2 points.

public class linesub {      point begin;      point end;