View difference between Paste ID: J1nKM75r and pHSPV06R

 package midexam;
 
 public interface GeometricObject
 {
     public double getPerimeter();
     public double getArea();
 }
 
 public class Circle implements GeometricObject
 {
     Circle()
     {
         super();
     }
     protected double radius=1.0;
 
     public void setradius(double radius)
     {
         this.radius=radius;
     }
     public double getradius()
     {
         return radius;
     }
     public double getPerimeter()
     {
         return 2*3.1416*radius;
     }
     public double getArea()
     {
         return 3.1416*radius*radius;
     }
 }
 
 public class TestCircle extends Circle
 {
     TestCircle()
     {
         super();
         System.out.println("Perimeter : "+getPerimeter());
         System.out.println("Area : "+getArea());
     }
 }
 
 public interface Resizable
 {
     public abstract void resize(int percent);
 }
 
 public class ResizableCircle extends Circle implements Resizable
 {
     public double radius=1;
     ResizableCircle()
     {
         super();
     }
     ResizableCircle(double radius)
     {
         super();
         this.radius=radius;
     }
 
     public void setradius(double radius)
     {
         this.radius=radius;
     }
     public double getradius()
     {
         return radius;
     }
     public void resize(int percent)
     {
         double c = (radius * percent)/100;
         System.out.println("Radius was: "+radius);
         System.out.println("Resized radius is : "+c);
     }
 }
 
 public class TestResizable extends ResizableCircle
 {
     TestResizable()
     {
         super();
     }
 }
 
 public class MidExam
 {
     public static void main(String[] args)
     {
         TestResizable tr = new TestResizable();
         ResizableCircle r = new ResizableCircle();
         r.setradius(1);
         r.resize(20);
         TestCircle tc = new TestCircle();
         Circle c = new Circle();
     }
 }