abstract class GraphicObject {
    int x, y;
    ...
    void moveTo(int newX, int newY) {
        ...
    }
    abstract void draw();
    abstract void resize();
}

class Circle extends GraphicObject {
    void draw() {
        ...
    }
    void resize() {
        ...
    }
}
class Rectangle extends GraphicObject {
    void draw() {
        ...
    }
    void resize() {
        ...
    }
}

//File name AbstractMethods.java
package abstractmethods;
public class AbstractMethods extends Shape{
    @Override
    public void Rectangle()
    {
        System.out.println("");
    }
    @Override
    public void Line(int x, int y)
    {
        System.out.println("The Sum of line  is: From AbstractMethod Class "+(x+y));
    }
    
    @Override //Annotatoin in Java
    public void Triangle(int x, int y, int z)
    {
        System.out.println("The Area of Triangle is: "+(x+y+z));
    }
    public static void main(String[] args) {
        AbstractMethods objAbs = new AbstractMethods();
        objAbs.Line(45, 77);
        objAbs.Triangle(12, 45, 34);
        Shape2 objS2 = new Shape2();
        objS2.Line(13, 34);
                                
    }
    
}

//File name Shape.java and must be store in above package.
package abstractmethods;
public abstract class Shape {    
        
       public abstract void Triangle(int x , int y, int z); // Abstact Method Decleration
       public abstract void Rectangle(); // Abstact Method Declerations
       public abstract void Line(int x, int y); // Abstact Method Declerations
}
class Shape2 extends Shape{
    @Override
    public void Rectangle()
    {
        System.out.println("");
    }
    @Override
    public void Line(int x, int y)
    {
        System.out.println("The Sum of Line is: "+(x+y));
    }
    
    @Override //Annotatoin in Java
    public void Triangle(int x, int y, int z)
    {
        System.out.println("The Area of Triangle is: "+(x+y+z));
    }

}